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Powervm Vios

95 CVEs product

Monthly

CVE-2026-16821 Aug 28, 20:43 HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 exploits a format string vulnerability (CWE-134) to allow a low-privileged local attacker to gain elevated - potentially root-level - privileges with full confidentiality, integrity, and availability impact. No public exploit code or active exploitation has been identified at time of analysis; EPSS sits at 0.10% (1st percentile), consistent with an SSVC exploitation status of 'none'. IBM has released a patch at the advisory linked below.

Privilege Escalation IBM Aix Powervm Vios
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2026-17121 Aug 20, 21:52 HIGH PATCH This Week

Denial of service via uncontrolled recursion affects IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1, enabling a remote unauthenticated attacker to crash affected systems with no authentication or user interaction required. The CVSS 3.1 score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) reflects low attack complexity and a fully network-exploitable path, making opportunistic or targeted disruption feasible against any exposed instance. IBM has released a patch via its support portal; no public exploit code or CISA KEV listing has been identified at time of analysis.

Denial Of Service IBM Aix Powervm Vios
NVD
CVSS 3.1
7.5
EPSS
0.5%
CVE-2026-17120 Aug 20, 21:51 HIGH PATCH This Week

Remote denial-of-service in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows unauthenticated network attackers to crash affected systems via a buffer overflow. The flaw is classified as CWE-787 (out-of-bounds write), enabling complete availability impact with no confidentiality or integrity exposure. No public exploit code or active exploitation has been identified at time of analysis, and a vendor patch is available.

Buffer Overflow Denial Of Service Memory Corruption IBM Aix +1
NVD
CVSS 3.1
7.5
EPSS
0.5%
CVE-2026-17118 Aug 20, 21:51 CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 stems from a use-after-free (CWE-416) that a network-based attacker can trigger without authentication or user interaction, per the CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N). Successful exploitation yields full compromise of confidentiality, integrity, and availability (CVSS 9.8). IBM has released a fix and there is no public exploit identified at time of analysis, and the CVE is not listed in CISA KEV.

RCE Use After Free Memory Corruption IBM Aix +1
NVD
CVSS 3.1
9.8
EPSS
0.8%
CVE-2026-17060 Aug 20, 21:51 CRITICAL PATCH Act Now

Information disclosure and denial of service in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 arise from a kernel heap over-read that a remote attacker can trigger without authentication or user interaction. Successful exploitation leaks sensitive kernel memory contents and can crash the affected system, and the CVSS 9.1 rating reflects the combined high confidentiality and availability impact. No public exploit has been identified at time of analysis, and the EPSS probability is low (0.34%).

Denial Of Service Information Disclosure IBM Aix Powervm Vios
NVD
CVSS 3.1
9.1
EPSS
0.3%
CVE-2026-17040 Aug 20, 21:50 CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows a remote attacker to run arbitrary code by triggering a classic buffer overflow (CWE-120). The flaw carries a CVSS 9.8 with a network, no-authentication, no-interaction vector, meaning a successful exploit yields full compromise of the affected Unix host. There is no public exploit identified at time of analysis and the CVE is not on CISA KEV, but a vendor patch is available.

RCE Buffer Overflow IBM Aix Powervm Vios
NVD
CVSS 3.1
9.8
EPSS
0.8%
CVE-2026-17024 Aug 20, 21:50 CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 stems from improper certificate validation (CWE-295), allowing a remote attacker to execute arbitrary code without authentication. Because the flawed TLS/certificate trust check can be abused over the network, an attacker positioned to intercept or impersonate a trusted endpoint could deliver a malicious payload to the affected component. There is no public exploit identified at time of analysis, and the EPSS probability is low (0.32%), but the CVSS 9.8 rating and unauthenticated network vector make this a high-priority patch on affected enterprise UNIX systems.

RCE IBM Aix Powervm Vios
NVD
CVSS 3.1
9.8
EPSS
0.3%
CVE-2026-17007 Aug 20, 21:49 HIGH PATCH This Week

Out-of-bounds read in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 enables local low-privileged attackers to either extract sensitive memory contents or crash the system, producing a denial of service. The flaw (CWE-125) requires only a standard local user account with no additional configuration, making it relevant to any multi-tenant AIX or VIOS deployment where untrusted users share system access. No public exploit code exists and EPSS sits at 0.15% (5th percentile), and SSVC confirms no known active exploitation at time of analysis.

Buffer Overflow Denial Of Service Information Disclosure IBM Aix +1
NVD
CVSS 3.1
7.1
EPSS
0.1%
CVE-2026-17006 Aug 20, 21:49 CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows a remote attacker to run arbitrary code by triggering a heap buffer overflow (CWE-787, out-of-bounds write). The CVSS 3.1 base score is 9.8 with a network vector and no privileges or user interaction required, but there is no public exploit identified at time of analysis and EPSS estimates only a 0.32% 30-day exploitation probability. IBM has published an advisory and a patch is available from the vendor.

RCE Buffer Overflow Memory Corruption IBM Aix +1
NVD
CVSS 3.1
9.8
EPSS
0.3%
CVE-2026-17003 Aug 20, 21:49 CRITICAL PATCH Act Now

Out-of-bounds memory write in IBM AIX 7.2/7.3 and IBM PowerVM VIOS 4.1 lets a remote attacker corrupt process memory to compromise system confidentiality and integrity, but not availability, per the CVSS 9.1 vector. IBM has published a fix (support advisory node/7283858), and there is no public exploit identified at time of analysis. EPSS is low at 0.43% (36th percentile) and CISA SSVC records no observed exploitation, so this is a vendor-disclosed memory-corruption issue rather than a mass-exploited one.

Buffer Overflow Memory Corruption IBM Aix Powervm Vios
NVD
CVSS 3.1
9.1
EPSS
0.4%
CVE-2026-17000 Aug 20, 21:48 CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows a network-based attacker to run arbitrary code by bypassing authentication (CWE-287). The CVSS 9.8 rating reflects unauthenticated network exploitation with total confidentiality, integrity, and availability impact, though there is no public exploit identified at time of analysis and it is not listed in CISA KEV. IBM has released a fix, and the moderate EPSS score (0.69%, 50th percentile) suggests exploitation is plausible but not yet widespread.

Authentication Bypass RCE IBM Aix Powervm Vios
NVD
CVSS 3.1
9.8
EPSS
0.7%
CVE-2026-16997 Aug 20, 21:48 HIGH PATCH This Week

Arbitrary command execution on IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 is achievable by a local attacker through improper privilege management (CWE-269), yielding full confidentiality, integrity, and availability compromise of the affected system. The vulnerability carries a CVSS 7.8 HIGH score with a local attack vector, no prior privileges required, and a user interaction dependency. No public exploit code has been identified at time of analysis; a vendor-released patch is available via IBM's support advisory.

Privilege Escalation IBM Aix Powervm Vios
NVD
CVSS 3.1
7.8
EPSS
0.2%
CVE-2026-16996 Aug 20, 21:48 HIGH PATCH This Week

Arbitrary code execution in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 is enabled by an integer underflow that triggers an out-of-bounds memory write, allowing a local low-privileged attacker to execute code with elevated or host-level impact. The CVSS Scope:Changed metric indicates exploitation may allow breakout beyond the initially compromised component - particularly significant in PowerVM VIOS, where a VIOS partition compromise could affect the underlying hypervisor or other hosted LPARs. No public exploit code or CISA KEV listing has been identified at time of analysis; a vendor patch is available.

RCE Buffer Overflow Memory Corruption IBM Aix +1
NVD
CVSS 3.1
8.8
EPSS
0.2%
CVE-2026-16991 Aug 20, 21:47 HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 enables any low-privileged authenticated user to achieve full system compromise through improper symbolic link handling. The CVSS 7.8 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) confirms complete confidentiality, integrity, and availability impact with no user interaction required. No public exploit identified at time of analysis; a vendor patch has been released via IBM advisory https://www.ibm.com/support/pages/node/7283858.

Privilege Escalation IBM Aix Powervm Vios
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2026-16989 Aug 20, 21:47 HIGH PATCH This Week

Privilege escalation in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows a local low-privileged attacker to gain elevated system access by exploiting improper symbolic link resolution (CWE-59). The CVSS 7.8 High score reflects full confidentiality, integrity, and availability impact on successful exploitation, though the local attack vector (AV:L) and low EPSS of 0.17% (7th percentile) substantially constrain real-world risk. No public exploit or active exploitation has been identified at time of analysis, and IBM has released a patch via its support portal.

Information Disclosure IBM Aix Powervm Vios
NVD VulDB
CVSS 3.1
7.8
EPSS
0.2%
CVE-2026-16972 Aug 20, 21:46 HIGH PATCH This Week

Sensitive information disclosure affects IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 via improper authentication (CWE-287), allowing unauthenticated remote attackers to obtain confidential data over the network. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms exploitation requires no credentials and no user interaction, making it trivially reachable from any network-adjacent position. No public exploit code has been identified at time of analysis, and CISA KEV does not list this CVE, but the automatable SSVC classification means scripted, mass-scanning attacks are plausible once a technique is known.

Authentication Bypass IBM Aix Powervm Vios
NVD
CVSS 3.1
7.5
EPSS
0.5%
CVE-2026-16958 Aug 20, 21:45 HIGH PATCH This Week

Out-of-bounds write in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 enables remote unauthenticated attackers to crash affected systems by sending crafted network input, resulting in a denial of service. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) indicates straightforward network-reachable exploitation with no privilege or user interaction required. No public exploit code has been identified at time of analysis, and CISA has not listed this in the Known Exploited Vulnerabilities catalog.

Buffer Overflow Denial Of Service Memory Corruption IBM Aix +1
NVD
CVSS 3.1
7.5
EPSS
0.3%
CVE-2026-16946 Aug 20, 21:34 HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 via heap buffer overflow (CWE-787) enables an authenticated local attacker with standard user-level access to gain elevated - potentially root - privileges on affected systems. The CVSS 7.8 High score reflects full confidentiality, integrity, and availability impact despite the local attack vector, making this a serious insider-threat and post-compromise escalation risk. IBM has released a patch; no public exploit code or CISA KEV listing has been identified at time of analysis.

Buffer Overflow Memory Corruption IBM Aix Powervm Vios
NVD VulDB
CVSS 3.1
7.8
EPSS
0.2%
CVE-2026-16945 Aug 20, 21:34 HIGH PATCH This Week

Stack-based buffer overflow in IBM AIX 7.2 and 7.3, and IBM PowerVM VIOS 4.1 enables a local low-privileged attacker to execute arbitrary code, achieving full system compromise (C:H/I:H/A:H). The attack requires only a local account with standard user privileges and no user interaction, making post-authentication lateral movement or privilege escalation a realistic threat in IBM Power-based enterprise environments. No public exploit identified at time of analysis, but a vendor-released patch is available.

RCE Buffer Overflow IBM Stack Overflow Aix +1
NVD VulDB
CVSS 3.1
7.8
EPSS
0.2%
CVE-2026-16944 Aug 20, 21:33 HIGH PATCH This Week

Stack-based buffer overflow in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 enables a local low-privileged attacker to execute arbitrary code, achieving full confidentiality, integrity, and availability compromise of the affected system. The CVSS score of 7.8 reflects the high post-exploitation impact despite the local attack vector requirement. No public exploit has been identified at time of analysis, and SSVC confirms no known exploitation activity, though the vendor has released a patch.

RCE Buffer Overflow Memory Corruption IBM Aix +1
NVD VulDB
CVSS 3.1
7.8
EPSS
0.2%
CVE-2026-16943 Aug 20, 21:33 HIGH PATCH This Week

Heap-based buffer overflow in IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 enables a local, low-privileged attacker to execute arbitrary code, achieving full compromise of confidentiality, integrity, and availability. The vulnerability stems from unsafe memory writes (CWE-787) that corrupt heap structures at runtime. No public exploit code or active exploitation has been identified at time of analysis, and IBM has released a patch via the advisory at ibm.com/support/pages/node/7283858.

RCE Buffer Overflow Memory Corruption IBM Aix +1
NVD
CVSS 3.1
7.8
EPSS
0.2%
CVE-2026-16937 Aug 20, 21:33 HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2 and 7.3, and IBM PowerVM VIOS 4.1 allows a low-privileged local user to gain elevated-likely root-level-access through improper privilege management (CWE-269). The CVSS 3.1 score of 7.8 (AV:L/AC:L/PR:L/UI:N) reflects low-complexity exploitation requiring only a standard local account with no user interaction. No public exploit code or CISA KEV listing has been identified at time of analysis, though IBM has released a patch via their support portal.

Privilege Escalation IBM Aix Powervm Vios
NVD VulDB
CVSS 3.1
7.8
EPSS
0.1%
CVE-2026-16936 Aug 20, 21:32 HIGH PATCH This Week

Local code execution via buffer overflow affects IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1, allowing a low-privileged local attacker to execute arbitrary code with a scope change that can compromise components beyond the initially vulnerable boundary. The CVSS vector (AV:L/AC:L/PR:L/UI:N/S:C) indicates exploitation requires only a local shell with standard user privileges and no interaction, yet the scope change elevates the impact to full CIA triad compromise. No public exploit identified at time of analysis, and a vendor-released patch is available from IBM.

RCE Buffer Overflow Memory Corruption IBM Aix +1
NVD VulDB
CVSS 3.1
8.8
EPSS
0.2%
CVE-2026-16935 Aug 20, 21:32 HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 allows a low-privileged local attacker to gain elevated - potentially root-level - privileges by winning a time-of-check to time-of-use (TOCTOU) race condition. The vulnerability carries a CVSS 7.0 score reflecting high attack complexity due to the inherent timing constraints of race condition exploitation, though successful exploitation yields total CIA impact (full system compromise). No public exploit code has been identified and CISA SSVC classifies exploitation status as none, consistent with the extremely low EPSS score of 0.12%.

Information Disclosure IBM Aix Powervm Vios
NVD
CVSS 3.1
7.0
EPSS
0.1%
CVE-2026-16934 Aug 20, 21:31 HIGH PATCH This Week

Privilege escalation via heap-based buffer overflow affects IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1, enabling a local attacker with standard user-level access to gain elevated - potentially root-level - privileges on the affected system. The CVSS scope-changed (S:C) rating confirms that successful exploitation extends control beyond the attacker's initial security context, threatening the entire host including virtual machine management infrastructure on PowerVM. No public exploit code has been identified at time of analysis, and IBM has released a patch via advisory node 7283858.

Buffer Overflow Memory Corruption IBM Aix Powervm Vios
NVD
CVSS 3.1
8.8
EPSS
0.2%
CVE-2026-16932 Aug 20, 14:39 HIGH PATCH This Week

Arbitrary OS command execution via ODMDIR environment variable manipulation affects IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1, enabling local authenticated users to escalate privileges beyond their initial access boundary. The CVSS scope change (S:C) indicates that successful exploitation can compromise components outside the immediate process context - a critical concern for AIX systems hosting sensitive workloads. No public exploit has been identified at time of analysis and no CISA KEV listing exists, but a vendor patch is available through IBM's support portal.

Command Injection IBM Aix Powervm Vios
NVD
CVSS 3.1
8.8
EPSS
0.2%
CVE-2026-16928 Aug 20, 14:38 HIGH PATCH This Week

Denial of service via heap-based buffer overflow affects IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1, exploitable by remote unauthenticated attackers. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms no authentication or user interaction is required, making this a low-friction remote availability attack against IBM Power Systems infrastructure. No active exploitation or public exploit code has been identified at time of analysis; a vendor patch is available via IBM's support portal.

Buffer Overflow Denial Of Service Heap Overflow IBM Aix +1
NVD
CVSS 3.1
7.5
EPSS
0.5%
CVE-2026-16927 Aug 20, 14:38 HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 enables a low-privileged local attacker to gain root access by winning a time-of-check to time-of-use (TOCTOU) race condition. The attack requires local access and precise timing, reflected in the AC:H CVSS metric, which meaningfully constrains practical exploitability. No public exploit or active exploitation is identified; EPSS sits at 0.12% (2nd percentile), consistent with the SSVC 'Exploitation: none' classification, though SSVC also rates technical impact as total given that successful exploitation yields full root control.

Information Disclosure IBM Aix Powervm Vios
NVD VulDB
CVSS 3.1
7.0
EPSS
0.1%
CVE-2026-16926 Aug 20, 14:38 CRITICAL PATCH Act Now

Arbitrary file overwrite in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 lets a remote attacker corrupt or replace files on the host due to improper neutralization of special elements in input (CWE-73). The CVSS 3.1 base score is 9.1 (I:H/A:H, no confidentiality impact), reflecting integrity and availability damage without data disclosure. No public exploit identified at time of analysis, but IBM has published a fix, and the network/low-complexity/no-privileges vector makes this a high-priority patch for exposed AIX and VIOS management interfaces.

Information Disclosure IBM Aix Powervm Vios
NVD
CVSS 3.1
9.1
EPSS
0.6%
CVE-2026-16925 Aug 20, 14:37 HIGH PATCH This Week

Privilege escalation on IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 allows any low-privileged local user to gain full system control by exploiting improper authorization checks (CWE-285). SSVC rates the technical impact as total, consistent with the CVSS C:H/I:H/A:H rating, meaning a successful attacker achieves complete compromise of confidentiality, integrity, and availability. No public exploit has been identified at time of analysis, and EPSS at 0.13% (3rd percentile) reflects negligible current exploitation pressure, though the low attack complexity makes this a meaningful insider-threat or post-compromise escalation risk.

Authentication Bypass Privilege Escalation IBM Aix Powervm Vios
NVD VulDB
CVSS 3.1
7.8
EPSS
0.1%
CVE-2026-16924 Aug 20, 14:37 HIGH PATCH This Week

Denial of service in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 is achievable by unauthenticated remote attackers who send crafted IPsec packets that trigger an integer underflow (CWE-191) during decapsulation, causing an improper memory offset calculation that crashes the affected system. The CVSS vector confirms network-accessible, zero-authentication exploitation with low complexity, yielding a full availability impact with no confidentiality or integrity exposure. IBM has released a patch; no public exploit code or CISA KEV listing exists at time of analysis.

Denial Of Service Integer Overflow IBM Aix Powervm Vios
NVD
CVSS 3.1
7.5
EPSS
0.5%
CVE-2026-16923 Aug 20, 14:36 HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 allows an authenticated local attacker with low-level access to gain elevated (likely root) privileges due to improper privilege management (CWE-269). The CVSS score of 7.8 reflects total confidentiality, integrity, and availability impact upon successful exploitation. No public exploit has been identified at time of analysis, EPSS is extremely low at 0.11% (2nd percentile), and SSVC confirms no observed exploitation, though technical impact is rated total if the flaw is triggered.

Privilege Escalation IBM Aix Powervm Vios
NVD VulDB
CVSS 3.1
7.8
EPSS
0.1%
CVE-2026-16922 Aug 20, 14:36 HIGH PATCH This Week

Local arbitrary code execution is possible in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 through a TOCTOU race condition (CWE-367), where a low-privileged local attacker can manipulate a resource between its check and its use by a privileged process. The CVSS 7.0 score reflects high confidentiality, integrity, and availability impact, though the high attack complexity (AC:H) indicates the timing window must be won reliably. No public exploit code has been identified and the vulnerability is not listed in the CISA KEV catalog; IBM has released a patch via its support advisory.

RCE IBM Aix Powervm Vios
NVD
CVSS 3.1
7.0
EPSS
0.1%
CVE-2026-16885 Aug 19, 19:51 CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows an unauthenticated remote attacker to run arbitrary code by triggering a stack-based buffer overflow, per the vendor-assigned CVSS 3.1 vector of AV:N/AC:L/PR:N/UI:N. IBM (the reporting party) has published a fix, and no public exploit identified at time of analysis. EPSS and KEV signals were not provided, so the 9.8 CVSS score is currently the strongest available severity indicator.

RCE Buffer Overflow IBM Stack Overflow Aix +1
NVD
CVSS 3.1
9.8
EPSS
0.8%
CVE-2026-16882 Aug 19, 19:43 CRITICAL PATCH Act Now

Remote OS command injection in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows a network attacker to execute arbitrary operating-system commands due to improper neutralization of special elements (CWE-78). The CVSS 3.1 base score is 9.8 with a network, no-privilege, no-interaction vector, and IBM has published a fix. There is no public exploit identified at time of analysis and the flaw is not listed in CISA KEV, but the combination of unauthenticated remote code execution on enterprise UNIX and virtualization infrastructure makes this a high-priority patch.

Command Injection IBM Aix Powervm Vios
NVD
CVSS 3.1
9.8
EPSS
0.9%
CVE-2026-16877 Aug 19, 19:43 HIGH PATCH This Week

Stack-based buffer overflow in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 enables remote authenticated attackers to execute arbitrary code, achieving full compromise of confidentiality, integrity, and availability. The CVSS 8.8 score reflects low-complexity network exploitation requiring only low-privilege authentication (PR:L), making it accessible to any credentialed user on the system. No public exploit identified at time of analysis, but a vendor-released patch is available from IBM.

RCE Buffer Overflow IBM Stack Overflow Aix +1
NVD
CVSS 3.1
8.8
EPSS
0.7%
CVE-2026-16875 Aug 19, 19:43 HIGH PATCH This Week

Shell metacharacter injection in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 allows a local low-privileged attacker to execute arbitrary OS commands, resulting in complete confidentiality, integrity, and availability compromise per CVSS C:H/I:H/A:H. The root cause (CWE-78) is insufficient sanitization of special shell characters passed to an OS interpreter within an IBM-provided utility or script. IBM has released a patch; no public exploit has been identified at time of analysis, and the vulnerability is not listed in the CISA KEV catalog.

Command Injection IBM Aix Powervm Vios
NVD
CVSS 3.1
7.8
EPSS
0.2%
CVE-2026-16874 Aug 19, 19:42 HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 enables a low-privileged authenticated user to gain root access by bypassing RBAC role enforcement. The flaw (CWE-269: Improper Privilege Management) means the operating system fails to correctly enforce the boundaries between assigned RBAC roles, allowing a standard user to assume or exercise privileges reserved for root. IBM has released a patch; no public exploit code or CISA KEV listing has been identified at time of analysis.

Privilege Escalation IBM Aix Powervm Vios
NVD
CVSS 3.1
7.8
EPSS
0.2%
CVE-2026-16873 Aug 19, 19:41 HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 stems from an out-of-bounds write (CWE-787) that allows a low-privileged local attacker to achieve complete system compromise across confidentiality, integrity, and availability. The CVSS 7.8 score (AV:L/AC:L/PR:L/UI:N) reflects low-complexity exploitation requiring only a standard local account - a realistic threshold for insider threats or post-exploitation lateral movement within IBM Power environments. No public exploit code has been identified and this vulnerability is not listed in the CISA KEV catalog at time of analysis; however, the total C/I/A:H impact on high-value enterprise Unix systems warrants prompt patching.

Privilege Escalation Buffer Overflow Memory Corruption IBM Aix +1
NVD
CVSS 3.1
7.8
EPSS
0.2%
CVE-2026-16872 Aug 19, 19:40 CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2/7.3 and IBM PowerVM VIOS 4.1 stems from a stack-based buffer overflow (CWE-121) that a network attacker can trigger without authentication or user interaction. Because the flaw carries a CVSS 9.8 with an AV:N/AC:L/PR:N/UI:N vector, a successful attack yields full compromise of confidentiality, integrity, and availability on affected enterprise UNIX hosts and virtualization I/O servers. There is no public exploit identified at time of analysis, and IBM (the reporter) has released a fix.

RCE Buffer Overflow IBM Stack Overflow Aix +1
NVD VulDB
CVSS 3.1
9.8
EPSS
0.8%
CVE-2026-16869 Aug 19, 19:40 HIGH PATCH This Week

Local arbitrary code execution in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 stems from improperly scrubbed environment variables (CWE-426: Untrusted Search Path), allowing a low-privileged local user to inject malicious values such as PATH or LD_PRELOAD that are subsequently consumed by a privileged process. With a CVSS score of 7.8 (HIGH) and full confidentiality, integrity, and availability impact, successful exploitation yields arbitrary code execution at an elevated privilege level. No public exploit or CISA KEV listing has been identified at time of analysis, though a vendor patch is available via IBM support.

RCE IBM Aix Powervm Vios
NVD VulDB
CVSS 3.1
7.8
EPSS
0.2%
CVE-2026-16865 Aug 19, 19:39 HIGH PATCH This Week

Command injection in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 enables an unauthenticated attacker with adjacent network access to execute arbitrary OS commands, achieving full compromise of confidentiality, integrity, and availability. The adjacent-network attack vector (AV:A) limits exposure to attackers already positioned on the same local network or VLAN as the affected system, which is a meaningful constraint in typical enterprise deployments of these platforms. No public exploit code and no active exploitation via CISA KEV have been identified at time of analysis; IBM has released a patch via its support portal.

RCE Command Injection IBM Aix Powervm Vios
NVD VulDB
CVSS 3.1
8.8
EPSS
2.3%
CVE-2026-16864 Aug 19, 19:39 CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 lets a remote attacker overflow a stack buffer (CWE-787 out-of-bounds write) and run arbitrary code on the affected Power-based host. The flaw was reported by IBM, carries a critical 9.8 CVSS rating with a network, no-privilege, no-interaction vector, and a vendor patch is available; there is no public exploit identified at time of analysis and it is not listed in CISA KEV.

RCE Buffer Overflow Memory Corruption IBM Aix +1
NVD VulDB
CVSS 3.1
9.8
EPSS
0.8%
CVE-2026-16862 Aug 19, 19:39 CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 stems from a stack buffer overflow (CWE-787) that a network-based attacker can trigger without authentication or user interaction, per the CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N). IBM has published a fix, and no public exploit has been identified at time of analysis, though the 9.8 base score reflects full compromise of confidentiality, integrity, and availability. The exact vulnerable service/daemon is not disclosed in the available data, which limits precise attack-surface scoping.

RCE Buffer Overflow Memory Corruption IBM Aix +1
NVD
CVSS 3.1
9.8
EPSS
0.8%
CVE-2026-16857 Aug 19, 19:38 HIGH PATCH This Week

Remote unauthenticated manipulation of network traffic and DNS configuration is possible in IBM AIX 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1, due to improper authentication controls (CWE-287). The CVSS 8.2 vector (AV:N/AC:L/PR:N/UI:N) confirms exploitation requires no credentials, no user interaction, and no special network positioning - making this accessible to any remote attacker with TCP connectivity to an affected system. No public exploit code has been identified at time of analysis, and CISA KEV listing has not been confirmed, but the low attack complexity and high integrity impact make this a meaningful priority for IBM Power Systems environments.

Authentication Bypass IBM Aix Powervm Vios
NVD
CVSS 3.1
8.2
EPSS
0.6%
CVE-2026-16852 Aug 19, 19:37 HIGH PATCH This Week

Remote denial of service in IBM AIX 7.2, AIX 7.3, and PowerVM VIOS 4.1 allows an unauthenticated network attacker to crash affected systems by triggering an integer overflow in a network-reachable component. The CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H vector confirms full availability loss with no authentication or user interaction required. No public exploit code has been identified at time of analysis, and this CVE does not appear in the CISA Known Exploited Vulnerabilities catalog; however, the low attack complexity means opportunistic exploitation is feasible once technical details become public.

Denial Of Service Integer Overflow IBM Aix Powervm Vios
NVD VulDB
CVSS 3.1
7.5
EPSS
0.5%
CVE-2026-16851 Aug 19, 19:37 HIGH PATCH This Week

Denial of service via use-after-free in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows an unauthenticated attacker on an adjacent network to crash affected systems by triggering a memory corruption condition. The scope change (S:C) in the CVSS vector is significant in virtualization contexts: a successful attack against PowerVM VIOS could cascade to hosted virtual machines, amplifying the availability impact beyond the directly targeted component. No public exploit code or active exploitation has been identified at time of analysis; a vendor patch is available.

Denial Of Service Use After Free Memory Corruption IBM Aix +1
NVD VulDB
CVSS 3.1
7.4
EPSS
0.3%
CVE-2026-16850 Aug 19, 19:37 HIGH PATCH This Week

Remote code execution in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 is achievable by an unauthenticated attacker on the same network segment via command injection triggered by crafted IPv6 Router Advertisement messages. The vulnerability (CWE-269, Improper Privilege Management) implies the RA processing subsystem executes injected commands with elevated OS-level privileges, enabling full confidentiality, integrity, and availability compromise of the affected host. No public exploit has been identified at time of analysis; IBM has released a patch per advisory https://www.ibm.com/support/pages/node/7283858.

Privilege Escalation RCE Command Injection IBM Aix +1
NVD VulDB
CVSS 3.1
8.8
EPSS
1.8%
CVE-2026-16848 Aug 19, 19:36 HIGH PATCH This Week

Arbitrary command execution against IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 is possible by an unauthenticated attacker on the same network segment who can deliver DHCP option values containing unescaped shell metacharacters to the system's DHCP client. The DHCP client fails to neutralize these metacharacters before passing option data to shell processing (CWE-78), enabling full confidentiality, integrity, and availability compromise of the target host. A vendor patch is available via IBM support, and no public exploit or CISA KEV listing has been identified at time of analysis.

Command Injection IBM Aix Powervm Vios
NVD
CVSS 3.1
8.8
EPSS
0.5%
CVE-2026-16847 Aug 19, 19:33 HIGH PATCH This Week

Heap buffer overflow in IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 enables unauthenticated adjacent-network attackers to execute arbitrary code on affected systems. The CWE-787 out-of-bounds write flaw carries a CVSS score of 8.8 and yields full confidentiality, integrity, and availability compromise upon successful exploitation. No public exploit code or CISA KEV listing has been identified at time of analysis; however, a vendor-supplied patch is available via IBM support advisory node/7283858.

RCE Buffer Overflow Memory Corruption IBM Aix +1
NVD
CVSS 3.1
8.8
EPSS
0.4%
CVE-2026-16845 Aug 19, 19:32 CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2/7.3 and IBM PowerVM VIOS 4.1 allows a remote attacker to run arbitrary code by triggering a heap buffer overflow (CWE-787 out-of-bounds write) in an affected network-facing component. The CVSS 9.8 vector (AV:N/AC:L/PR:N/UI:N) indicates unauthenticated, low-complexity network exploitation with full confidentiality, integrity, and availability impact. IBM has published a fix; no public exploit identified at time of analysis and no CISA KEV listing, so this is currently a high-severity but not confirmed-exploited issue.

RCE Buffer Overflow Memory Corruption IBM Aix +1
NVD
CVSS 3.1
9.8
EPSS
0.8%
CVE-2026-16844 Aug 19, 19:32 HIGH PATCH This Week

OS command injection in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 enables an unauthenticated attacker with adjacent network access to execute arbitrary operating system commands without any user interaction. The flaw (CWE-78) resides in a network-exposed component that fails to neutralize shell metacharacters before incorporating user-supplied input into OS commands, granting full confidentiality, integrity, and availability impact. No public exploit has been identified at time of analysis, but a vendor patch is available via IBM support advisory.

Command Injection IBM Aix Powervm Vios
NVD
CVSS 3.1
8.8
EPSS
0.5%
CVE-2026-16842 Aug 19, 19:31 HIGH PATCH This Week

OS command injection in IBM AIX 7.2/7.3 and IBM PowerVM VIOS 4.1 allows an adjacent network attacker without credentials to execute arbitrary operating system commands. The flaw (CWE-78) arises from improper neutralization of special elements passed to OS command constructors, exposing the full confidentiality, integrity, and availability of affected hosts. No public exploit or CISA KEV listing has been identified at time of analysis, though a vendor patch is available via IBM Support.

Command Injection IBM Aix Powervm Vios
NVD
CVSS 3.1
8.8
EPSS
0.5%
CVE-2026-16841 Aug 19, 19:31 HIGH PATCH This Week

Stack buffer overflow in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 enables unauthenticated remote code execution by any attacker with adjacent network access. The flaw (CWE-787, Out-of-bounds Write) corrupts stack memory during processing of a crafted network payload, allowing an attacker to overwrite return addresses and redirect execution without requiring credentials or user interaction. No public exploit has been identified at time of analysis and IBM has released a patch, but the AV:A/PR:N/AC:L vector makes this a high-priority fix for any organization running IBM Power Systems infrastructure.

RCE Buffer Overflow Memory Corruption IBM Aix +1
NVD
CVSS 3.1
8.8
EPSS
0.4%
CVE-2026-16840 Aug 19, 19:31 CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows a remote attacker to run arbitrary code by triggering an out-of-bounds write (CWE-787) in an affected component. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) indicates the flaw is reachable over the network by unauthenticated attackers with low complexity, yielding full compromise of confidentiality, integrity, and availability. IBM has released a fix; there is no public exploit identified at time of analysis and the CVE is not listed in CISA KEV.

RCE Buffer Overflow Memory Corruption IBM Aix +1
NVD
CVSS 3.1
9.8
EPSS
0.8%
CVE-2026-16839 Aug 19, 19:30 CRITICAL PATCH Act Now

Remote information disclosure in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 stems from an integer underflow in the kernel's IPv4 IP-options parser (CWE-125 out-of-bounds read), letting a remote attacker leak sensitive memory contents by sending crafted IP packets. IBM (the reporting vendor) rates it CVSS 9.4, and a patch is available. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Buffer Overflow Information Disclosure IBM Aix Powervm Vios
NVD
CVSS 3.1
9.4
EPSS
0.5%
CVE-2026-16838 Aug 19, 19:30 HIGH PATCH This Week

TOCTOU race condition in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 permits a local, low-privileged user to overwrite critical system files or extract sensitive information by exploiting the timing gap between a file-check and file-use operation. The attack is constrained to local access with high exploitation complexity, yet the potential impact spans full confidentiality, integrity, and availability compromise of the affected system. No public exploit or CISA KEV listing exists at time of analysis; IBM has released a vendor patch.

Information Disclosure IBM Aix Powervm Vios
NVD
CVSS 3.1
7.0
EPSS
0.1%
CVE-2026-16837 Aug 19, 19:30 HIGH PATCH This Week

Remote denial of service in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows unauthenticated network attackers to crash or exhaust resources in the SSL subsystem by omitting an expected client certificate during the TLS handshake. The CVSS 7.5 rating (AV:N/AC:L/PR:N/UI:N) confirms low attack complexity with no authentication required, making exploitation straightforward against any exposed SSL service on affected systems. No public exploit code and no CISA KEV listing have been identified at time of analysis, but the patch is available and should be prioritized for internet-facing AIX and VIOS deployments.

Denial Of Service IBM Aix Powervm Vios
NVD
CVSS 3.1
7.5
EPSS
0.3%
CVE-2026-16836 Aug 19, 19:30 HIGH PATCH This Week

Denial of service in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 enables unauthenticated remote attackers to exhaust system resources via network-delivered input, fully disabling availability (CVSS A:H) without any confidentiality or integrity impact. The vulnerability is rooted in CWE-400 uncontrolled resource consumption, triggered from the network with no authentication or user interaction required (AV:N/AC:L/PR:N/UI:N). No public exploit code or active exploitation has been identified at time of analysis; a vendor patch is available from IBM.

Denial Of Service IBM Aix Powervm Vios
NVD
CVSS 3.1
7.5
EPSS
0.5%
CVE-2026-16834 Aug 19, 19:29 CRITICAL PATCH Act Now

Denial of service in IBM AIX 7.2/7.3 and IBM PowerVM VIOS 4.1 lets a remote attacker crash or hang the affected system by triggering an integer underflow (CWE-190) in a network-reachable component. The flaw was reported by IBM, which has released a fix; no public exploit code has been identified at time of analysis and it is not listed in CISA KEV. Note that IBM's published CVSS 9.8 claims full confidentiality/integrity/availability impact, which conflicts with the description's DoS-only wording.

Denial Of Service Integer Overflow IBM Aix Powervm Vios
NVD
CVSS 3.1
9.8
EPSS
0.6%
CVE-2026-16831 Aug 19, 19:28 HIGH PATCH This Week

Denial of service in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 allows unauthenticated remote attackers to exhaust system resources and render affected systems unavailable by sending crafted network input that triggers uncontrolled resource consumption (CWE-400). The CVSS 3.1 vector of AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H confirms low-complexity, unauthenticated remote exploitability with a high availability impact. No active exploitation has been confirmed in CISA KEV, and no public exploit code is known at time of analysis; a vendor patch is available via IBM's support portal.

Denial Of Service IBM Aix Powervm Vios
NVD
CVSS 3.1
7.5
EPSS
0.5%
CVE-2026-16824 Aug 19, 19:26 HIGH PATCH This Week

Unbounded recursion in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 exposes these systems to remote denial-of-service attacks requiring no authentication or user interaction. Network-reachable attackers can trigger uncontrolled resource consumption, exhausting stack or memory resources and disrupting availability of affected systems. No public exploit code has been identified and CISA KEV does not list this vulnerability; a vendor-released patch is available via IBM's support portal.

Denial Of Service IBM Aix Powervm Vios
NVD
CVSS 3.1
7.5
EPSS
0.5%
CVE-2026-16822 Aug 19, 19:25 CRITICAL PATCH Act Now

TNC policy server impersonation in IBM AIX 7.2/7.3 and IBM PowerVM VIOS 4.1 lets a network-positioned attacker forge the Trusted Network Connect policy server and tamper with the traffic between it and the endpoint, because the client fails to properly validate the server's certificate (CWE-295). An attacker who can intercept the session can present a fraudulent certificate, read limited data and alter integrity-critical policy exchanges. IBM has released a fix; no public exploit identified at time of analysis, and the issue is not listed in CISA KEV.

Information Disclosure IBM Aix Powervm Vios
NVD
CVSS 3.1
9.3
EPSS
0.3%
CVE-2026-16819 Aug 19, 15:07 HIGH PATCH This Week

IBM AIX 7.2 and 7.3, along with IBM PowerVM VIOS 4.1, expose a time-of-check time-of-use (TOCTOU) race condition that local, unprivileged attackers can exploit to corrupt data integrity or crash the system. The flaw requires only local shell access with no privileges, making it exploitable by any local user account on affected POWER-architecture systems. No public exploit code or CISA KEV listing exists at time of analysis, though a vendor patch is available.

Denial Of Service IBM Aix Powervm Vios
NVD
CVSS 3.1
7.7
EPSS
0.1%
CVE-2026-16818 Aug 19, 15:03 HIGH PATCH This Week

Uncontrolled resource consumption in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 exposes these systems to remote denial-of-service attacks requiring no authentication or user interaction. The CVSS vector AV:N/AC:L/PR:N/UI:N confirms any network-reachable attacker can trigger availability loss without special privileges. No public exploit code or active exploitation (CISA KEV) has been identified at time of analysis, and a vendor patch is available.

Denial Of Service IBM Aix Powervm Vios
NVD
CVSS 3.1
7.5
EPSS
0.5%
CVE-2026-16817 Aug 19, 15:02 HIGH PATCH This Week

IBM AIX 7.2 and 7.3, and PowerVM VIOS 4.1 expose an unauthenticated remote denial-of-service condition rooted in a NULL pointer dereference. A remote attacker with no credentials or user interaction can crash affected network-accessible components, resulting in complete availability loss (A:H) with no confidentiality or integrity impact. No public exploit code or active exploitation has been confirmed at time of analysis, and IBM has released a patch via advisory https://www.ibm.com/support/pages/node/7283858.

Denial Of Service Null Pointer Dereference IBM Aix Powervm Vios
NVD
CVSS 3.1
7.5
EPSS
0.5%
CVE-2026-16816 Aug 19, 15:01 CRITICAL PATCH Act Now

OS command injection in IBM AIX 7.2 and 7.3 and in IBM PowerVM VIOS 4.1 lets a remote, authenticated attacker execute arbitrary operating-system commands due to improper neutralization of special elements (CWE-78). Rated CVSS 9.9 with a scope change, a successful low-privilege attacker can break out of the application context and run commands on the underlying enterprise Unix host, threatening confidentiality, integrity, and availability. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the near-maximum score and network reachability make it a high-priority patch.

Command Injection IBM Aix Powervm Vios
NVD
CVSS 3.1
9.9
EPSS
0.8%
CVE-2026-16814 Aug 19, 15:00 HIGH PATCH This Week

Heap buffer overflow in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 enables unauthenticated remote code execution by attackers positioned on an adjacent network segment, with no user interaction required. The flaw (CWE-787, out-of-bounds write) results in full compromise of confidentiality, integrity, and availability of the affected system. A vendor patch has been released via IBM advisory; no public exploit code or CISA KEV listing has been identified at time of analysis.

RCE Buffer Overflow Memory Corruption IBM Aix +1
NVD
CVSS 3.1
8.8
EPSS
0.4%
CVE-2026-16706 Aug 19, 15:00 HIGH PATCH This Week

Remote denial-of-service in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 is caused by a CWE-787 out-of-bounds write reachable by unauthenticated network attackers with no complexity prerequisites. The CVSS 3.1 score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) reflects straightforward remote triggering with high availability impact but no confidentiality or integrity consequence. IBM has released a patch via the vendor advisory; no public exploit code has been identified at time of analysis.

Buffer Overflow Denial Of Service Memory Corruption IBM Aix +1
NVD
CVSS 3.1
7.5
EPSS
0.5%
CVE-2026-16703 Aug 19, 14:59 HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2 and 7.3, and IBM PowerVM VIOS 4.1 allows an authenticated low-privileged user to gain full elevated privileges due to improper privilege management (CWE-269). The CVSS vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) confirms that any standard local user account is sufficient to trigger the flaw with low complexity and no user interaction, resulting in complete confidentiality, integrity, and availability compromise of the affected system. No public exploit identified at time of analysis, and a vendor patch is available via IBM advisory.

Privilege Escalation IBM Aix Powervm Vios
NVD
CVSS 3.1
7.8
EPSS
0.1%
CVE-2026-16690 Aug 19, 14:58 HIGH PATCH This Week

Remote denial-of-service in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 enables an unauthenticated network attacker to exhaust system resources and crash or severely degrade affected hosts. The root cause is uncontrolled resource consumption (CWE-400), exploitable without authentication or user interaction via a network-accessible service. No public exploit code or active exploitation has been identified at time of analysis; IBM has released a patch addressed in advisory node/7283858.

Denial Of Service IBM Aix Powervm Vios
NVD
CVSS 3.1
7.5
EPSS
0.5%
CVE-2026-16686 Aug 19, 14:56 HIGH PATCH This Week

Unauthenticated remote access to NFS-exported filesystems is possible in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 due to improper authentication (CWE-287). The CVSS vector AV:N/AC:L/PR:N/UI:N confirms that unauthenticated remote attackers on the network can exploit this with low complexity and no user interaction, gaining high-confidence read access and limited write access to exported filesystem data. No public exploit has been identified at time of analysis, and IBM has released a patch via advisory 7283858.

Authentication Bypass IBM Aix Powervm Vios
NVD
CVSS 3.1
8.2
EPSS
0.5%
CVE-2026-14970 Aug 19, 14:56 HIGH PATCH This Week

Remote denial of service in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 is exploitable by unauthenticated attackers who send malformed client registration packets to the NIM (Network Installation Manager) server, triggering a classic buffer overflow that crashes the nimserver daemon. The CVSS 7.5 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) confirms low-complexity, network-accessible exploitation requiring no privileges, though impact is strictly limited to availability - no confidentiality or integrity exposure is present. IBM has released a patch via support advisory 7283858; no public exploit code has been identified and this vulnerability does not appear on the CISA KEV catalog at time of analysis.

Buffer Overflow IBM Aix Powervm Vios
NVD
CVSS 3.1
7.5
EPSS
0.5%
CVE-2026-16656 Aug 19, 14:55 CRITICAL PATCH Act Now

Remote privilege escalation to root in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 stems from an improper authentication weakness (CWE-287) that lets an unauthenticated network attacker bypass identity checks and obtain root-level control. The CVSS 9.8 rating reflects a network-reachable, low-complexity flaw requiring no privileges or user interaction, with full confidentiality, integrity, and availability impact. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the severity and unauthenticated network vector make it a high-priority patching target for IBM Power estates.

Authentication Bypass IBM Aix Powervm Vios
NVD
CVSS 3.1
9.8
EPSS
0.7%
CVE-2026-15078 Aug 19, 14:35 HIGH PATCH This Week

Improper TLS certificate validation in the NIM (Network Installation Management) subsystem of IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 enables remote attackers to gain unauthorized access to AIX systems by exploiting the failure to verify certificate authenticity during NIM communications. The CVSS 8.1 High score reflects high confidentiality and integrity impact across a network-exploitable path with low complexity and no user interaction required. No public exploit identified at time of analysis, but the authentication bypass classification of this flaw makes it a meaningful privilege escalation and lateral movement risk in IBM Power environments.

Authentication Bypass IBM Aix Powervm Vios
NVD
CVSS 3.1
8.1
EPSS
0.3%
CVE-2026-15068 Aug 19, 14:34 CRITICAL PATCH Act Now

OS command injection in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 lets a remote authenticated attacker run arbitrary commands through the Network Installation Manager (NIM) component. Because NIM typically operates with high (often root-level) privilege and the CVSS scope is Changed, successful exploitation can compromise the underlying operating system with full confidentiality, integrity, and availability impact. There is no public exploit identified at time of analysis and it is not on CISA KEV, but the 9.9 base score and low attack complexity make it a high-priority patch for IBM Power estates.

Command Injection IBM Aix Powervm Vios
NVD
CVSS 3.1
9.9
EPSS
0.8%
CVE-2026-15065 Aug 19, 14:33 CRITICAL PATCH Act Now

Sensitive-key exposure in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 Network Installation Management (NIM) leaks intermediate certificate authority (CA) private keys inside a publicly downloadable update file, letting remote attackers forge trusted certificates and bypass security restrictions. Rated CVSS 9.1, the flaw impacts confidentiality and integrity (C:H/I:H) but not availability, and IBM has released a fix. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the ease of obtaining a live CA key makes this a high-priority credential-hygiene issue.

Authentication Bypass IBM Aix Powervm Vios
NVD
CVSS 3.1
9.1
EPSS
0.7%
CVE-2026-15061 Aug 19, 14:33 HIGH PATCH This Week

Unauthenticated remote file overwrite in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 is possible via the nimesis registration service, which fails to sanitize path traversal sequences in client-supplied input. An attacker with network access to the nimesis service can write arbitrary content to locations outside the intended directory, potentially overwriting sensitive system files such as cron jobs, init scripts, or authentication databases. No public exploit or active exploitation has been identified at time of analysis, though the CVSS vector (AV:N/AC:L/PR:N/UI:N) indicates this is straightforwardly exploitable without authentication.

Path Traversal IBM Aix Powervm Vios
NVD
CVSS 3.1
8.2
EPSS
0.6%
CVE-2026-17009 Aug 20, 21:49 MEDIUM PATCH This Month

NULL pointer dereference in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 allows a local low-privileged attacker to crash the system, causing a denial of service. Exploitation requires high attack complexity, suggesting a race condition or specific system state must be induced. No public exploit code exists and this vulnerability is not listed in the CISA KEV catalog; a vendor patch is available via IBM support.

Denial Of Service Null Pointer Dereference IBM Aix Powervm Vios
NVD VulDB
CVSS 3.1
5.5
EPSS
0.1%
CVE-2026-16980 Aug 20, 21:46 MEDIUM PATCH This Month

Symlink following vulnerability in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 allows a local low-privileged attacker to cause a denial of service - and potentially file corruption - through improper symbolic link validation (CWE-59). The CVSS vector (AV:L/AC:H/PR:L/I:H/A:H) indicates exploitation requires local access, a race-condition timing window, and results in both high integrity and availability impact despite the DoS classification. No public exploit code has been identified and this CVE is not listed in the CISA KEV catalog; IBM has released a patch.

Denial Of Service IBM Aix Powervm Vios
NVD VulDB
CVSS 3.1
5.5
EPSS
0.1%
CVE-2026-16973 Aug 20, 21:46 MEDIUM PATCH This Month

Kernel memory disclosure in IBM AIX 7.2 and 7.3, and IBM PowerVM VIOS 4.1 allows a local attacker with standard user privileges to read sensitive out-of-bounds kernel memory via an unspecified vulnerability. The CVSS vector (AV:L/AC:L/PR:L/UI:N) confirms exploitation requires only a local shell account with no elevated rights, making it viable for any authenticated local user or a compromised service account. No public exploit code has been identified at time of analysis, and IBM has released a patch via the vendor advisory.

Buffer Overflow Information Disclosure IBM Aix Powervm Vios
NVD
CVSS 3.1
5.5
EPSS
0.1%
CVE-2026-16964 Aug 20, 21:45 MEDIUM PATCH This Month

IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 expose sensitive information over the network, enabling remote unauthenticated attackers to intercept in-flight messages and forge replies. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms exploitation requires no credentials or user interaction, making any network-adjacent attacker a potential threat. No public exploit code has been identified and the vulnerability is not listed in the CISA KEV catalog; IBM has released a patch.

Information Disclosure IBM Aix Powervm Vios
NVD
CVSS 3.1
6.5
EPSS
0.3%
CVE-2026-16952 Aug 20, 21:45 MEDIUM PATCH This Month

Uncontrolled resource consumption in IBM AIX 7.2 and 7.3, and IBM PowerVM VIOS 4.1, enables a local low-privileged attacker to exhaust system resources and trigger a denial of service condition. The vulnerability is classified under CWE-400 and carries a CVSS 3.1 base score of 5.5 with a local attack vector requiring low privileges. IBM has released a patch via advisory 7283858; no active exploitation or public proof-of-concept code has been identified at time of analysis.

Denial Of Service IBM Aix Powervm Vios
NVD VulDB
CVSS 3.1
5.5
EPSS
0.1%
CVE-2026-16951 Aug 20, 21:44 MEDIUM PATCH This Month

Heap-based buffer overflow in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 enables a local authenticated attacker with high privileges to execute arbitrary code on affected systems. The vulnerability is rooted in improper memory management (CWE-787) and carries a CVSS 3.1 score of 6.7, reflecting the local access requirement and elevated privilege prerequisite that constrain real-world exploitability. IBM has released a patch via its support portal; no public exploit code or CISA KEV listing has been identified at time of analysis.

RCE Buffer Overflow Memory Corruption IBM Aix +1
NVD VulDB
CVSS 3.1
6.7
EPSS
0.2%
CVE-2026-16888 Aug 19, 19:51 LOW PATCH Monitor

Path traversal in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 exposes sensitive files to remote, unauthenticated attackers over the network. The flaw (CWE-22) allows directory traversal sequences to escape an intended path boundary, enabling read access to files that should not be externally accessible. No active exploitation has been confirmed by CISA KEV, and no public exploit code has been identified at time of analysis.

Path Traversal IBM Aix Powervm Vios
NVD
CVSS 3.1
3.7
EPSS
0.5%
CVE-2026-16883 Aug 19, 19:44 MEDIUM PATCH This Month

Out-of-bounds memory read in IBM AIX 7.2 and 7.3, and IBM PowerVM VIOS 4.1 exposes sensitive system memory to locally authenticated users holding low-privilege accounts. The flaw (CWE-125) allows an attacker with existing local access to read memory contents beyond intended buffer boundaries, producing high confidentiality impact while leaving system integrity and availability unaffected. No public exploit code or CISA KEV listing has been identified at time of analysis; IBM has released a patch via advisory 7283858.

Buffer Overflow Information Disclosure IBM Aix Powervm Vios
NVD
CVSS 3.1
5.5
EPSS
0.1%
CVE-2026-16866 Aug 19, 19:39 MEDIUM PATCH This Month

Out-of-bounds read (CWE-125) in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 exposes a remotely reachable attack surface that allows unauthenticated network attackers to cause a denial of service under high-complexity conditions. The CVSS vector also records a limited integrity impact (I:L), which is inconsistent with the description's exclusive mention of denial of service and warrants verification against the vendor advisory. No public exploit code or active exploitation has been identified; a vendor patch is available from IBM.

Buffer Overflow Denial Of Service Information Disclosure IBM Aix +1
NVD VulDB
CVSS 3.1
4.8
EPSS
0.3%
CVE-2026-16855 Aug 19, 19:38 MEDIUM PATCH This Month

Heap buffer overflow in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 enables a local low-privileged attacker to crash the system, resulting in a denial of service. The flaw is rooted in improper bounds checking during heap memory operations (CWE-787). No public exploit code has been identified at time of analysis, and the vulnerability is not listed in CISA KEV; however, a vendor-released patch is available via IBM advisory node/7283858.

Buffer Overflow Denial Of Service Memory Corruption IBM Aix +1
NVD VulDB
CVSS 3.1
5.5
EPSS
0.1%
CVE-2026-16849 Aug 19, 19:36 MEDIUM PATCH This Month

Denial of service in IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 is achievable by unauthenticated remote attackers positioned on an adjacent network segment, exploiting an improper array index boundary check (CWE-129). The flaw allows a crafted network request to trigger an out-of-bounds array access, crashing or degrading availability of the affected system. No active exploitation has been confirmed by CISA KEV, and no public proof-of-concept has been identified at time of analysis; a vendor patch is available via IBM Support.

Denial Of Service IBM Aix Powervm Vios
NVD
CVSS 3.1
4.3
EPSS
0.3%
CVE-2026-16846 Aug 19, 19:33 MEDIUM PATCH This Month

Denial of service in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 is achievable by an adjacent-network attacker exploiting a null pointer dereference, capable of crashing the targeted system without requiring authentication or user interaction. The vulnerability affects IBM's enterprise UNIX operating system and its PowerVM Virtual I/O Server layer, where availability is operationally critical for hosted workloads. No public exploit code has been identified at time of analysis, and IBM has released a remediation patch via official advisory.

Denial Of Service Null Pointer Dereference IBM Aix Powervm Vios
NVD
CVSS 3.1
6.5
EPSS
0.3%
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 exploits a format string vulnerability (CWE-134) to allow a low-privileged local attacker to gain elevated - potentially root-level - privileges with full confidentiality, integrity, and availability impact. No public exploit code or active exploitation has been identified at time of analysis; EPSS sits at 0.10% (1st percentile), consistent with an SSVC exploitation status of 'none'. IBM has released a patch at the advisory linked below.

Privilege Escalation IBM Aix +1
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Denial of service via uncontrolled recursion affects IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1, enabling a remote unauthenticated attacker to crash affected systems with no authentication or user interaction required. The CVSS 3.1 score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) reflects low attack complexity and a fully network-exploitable path, making opportunistic or targeted disruption feasible against any exposed instance. IBM has released a patch via its support portal; no public exploit code or CISA KEV listing has been identified at time of analysis.

Denial Of Service IBM Aix +1
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Remote denial-of-service in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows unauthenticated network attackers to crash affected systems via a buffer overflow. The flaw is classified as CWE-787 (out-of-bounds write), enabling complete availability impact with no confidentiality or integrity exposure. No public exploit code or active exploitation has been identified at time of analysis, and a vendor patch is available.

Buffer Overflow Denial Of Service Memory Corruption +3
NVD
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 stems from a use-after-free (CWE-416) that a network-based attacker can trigger without authentication or user interaction, per the CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N). Successful exploitation yields full compromise of confidentiality, integrity, and availability (CVSS 9.8). IBM has released a fix and there is no public exploit identified at time of analysis, and the CVE is not listed in CISA KEV.

RCE Use After Free Memory Corruption +3
NVD
EPSS 0% CVSS 9.1
CRITICAL PATCH Act Now

Information disclosure and denial of service in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 arise from a kernel heap over-read that a remote attacker can trigger without authentication or user interaction. Successful exploitation leaks sensitive kernel memory contents and can crash the affected system, and the CVSS 9.1 rating reflects the combined high confidentiality and availability impact. No public exploit has been identified at time of analysis, and the EPSS probability is low (0.34%).

Denial Of Service Information Disclosure IBM +2
NVD
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows a remote attacker to run arbitrary code by triggering a classic buffer overflow (CWE-120). The flaw carries a CVSS 9.8 with a network, no-authentication, no-interaction vector, meaning a successful exploit yields full compromise of the affected Unix host. There is no public exploit identified at time of analysis and the CVE is not on CISA KEV, but a vendor patch is available.

RCE Buffer Overflow IBM +2
NVD
EPSS 0% CVSS 9.8
CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 stems from improper certificate validation (CWE-295), allowing a remote attacker to execute arbitrary code without authentication. Because the flawed TLS/certificate trust check can be abused over the network, an attacker positioned to intercept or impersonate a trusted endpoint could deliver a malicious payload to the affected component. There is no public exploit identified at time of analysis, and the EPSS probability is low (0.32%), but the CVSS 9.8 rating and unauthenticated network vector make this a high-priority patch on affected enterprise UNIX systems.

RCE IBM Aix +1
NVD
EPSS 0% CVSS 7.1
HIGH PATCH This Week

Out-of-bounds read in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 enables local low-privileged attackers to either extract sensitive memory contents or crash the system, producing a denial of service. The flaw (CWE-125) requires only a standard local user account with no additional configuration, making it relevant to any multi-tenant AIX or VIOS deployment where untrusted users share system access. No public exploit code exists and EPSS sits at 0.15% (5th percentile), and SSVC confirms no known active exploitation at time of analysis.

Buffer Overflow Denial Of Service Information Disclosure +3
NVD
EPSS 0% CVSS 9.8
CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows a remote attacker to run arbitrary code by triggering a heap buffer overflow (CWE-787, out-of-bounds write). The CVSS 3.1 base score is 9.8 with a network vector and no privileges or user interaction required, but there is no public exploit identified at time of analysis and EPSS estimates only a 0.32% 30-day exploitation probability. IBM has published an advisory and a patch is available from the vendor.

RCE Buffer Overflow Memory Corruption +3
NVD
EPSS 0% CVSS 9.1
CRITICAL PATCH Act Now

Out-of-bounds memory write in IBM AIX 7.2/7.3 and IBM PowerVM VIOS 4.1 lets a remote attacker corrupt process memory to compromise system confidentiality and integrity, but not availability, per the CVSS 9.1 vector. IBM has published a fix (support advisory node/7283858), and there is no public exploit identified at time of analysis. EPSS is low at 0.43% (36th percentile) and CISA SSVC records no observed exploitation, so this is a vendor-disclosed memory-corruption issue rather than a mass-exploited one.

Buffer Overflow Memory Corruption IBM +2
NVD
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows a network-based attacker to run arbitrary code by bypassing authentication (CWE-287). The CVSS 9.8 rating reflects unauthenticated network exploitation with total confidentiality, integrity, and availability impact, though there is no public exploit identified at time of analysis and it is not listed in CISA KEV. IBM has released a fix, and the moderate EPSS score (0.69%, 50th percentile) suggests exploitation is plausible but not yet widespread.

Authentication Bypass RCE IBM +2
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Arbitrary command execution on IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 is achievable by a local attacker through improper privilege management (CWE-269), yielding full confidentiality, integrity, and availability compromise of the affected system. The vulnerability carries a CVSS 7.8 HIGH score with a local attack vector, no prior privileges required, and a user interaction dependency. No public exploit code has been identified at time of analysis; a vendor-released patch is available via IBM's support advisory.

Privilege Escalation IBM Aix +1
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Arbitrary code execution in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 is enabled by an integer underflow that triggers an out-of-bounds memory write, allowing a local low-privileged attacker to execute code with elevated or host-level impact. The CVSS Scope:Changed metric indicates exploitation may allow breakout beyond the initially compromised component - particularly significant in PowerVM VIOS, where a VIOS partition compromise could affect the underlying hypervisor or other hosted LPARs. No public exploit code or CISA KEV listing has been identified at time of analysis; a vendor patch is available.

RCE Buffer Overflow Memory Corruption +3
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 enables any low-privileged authenticated user to achieve full system compromise through improper symbolic link handling. The CVSS 7.8 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) confirms complete confidentiality, integrity, and availability impact with no user interaction required. No public exploit identified at time of analysis; a vendor patch has been released via IBM advisory https://www.ibm.com/support/pages/node/7283858.

Privilege Escalation IBM Aix +1
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Privilege escalation in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows a local low-privileged attacker to gain elevated system access by exploiting improper symbolic link resolution (CWE-59). The CVSS 7.8 High score reflects full confidentiality, integrity, and availability impact on successful exploitation, though the local attack vector (AV:L) and low EPSS of 0.17% (7th percentile) substantially constrain real-world risk. No public exploit or active exploitation has been identified at time of analysis, and IBM has released a patch via its support portal.

Information Disclosure IBM Aix +1
NVD VulDB
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Sensitive information disclosure affects IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 via improper authentication (CWE-287), allowing unauthenticated remote attackers to obtain confidential data over the network. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms exploitation requires no credentials and no user interaction, making it trivially reachable from any network-adjacent position. No public exploit code has been identified at time of analysis, and CISA KEV does not list this CVE, but the automatable SSVC classification means scripted, mass-scanning attacks are plausible once a technique is known.

Authentication Bypass IBM Aix +1
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Out-of-bounds write in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 enables remote unauthenticated attackers to crash affected systems by sending crafted network input, resulting in a denial of service. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) indicates straightforward network-reachable exploitation with no privilege or user interaction required. No public exploit code has been identified at time of analysis, and CISA has not listed this in the Known Exploited Vulnerabilities catalog.

Buffer Overflow Denial Of Service Memory Corruption +3
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 via heap buffer overflow (CWE-787) enables an authenticated local attacker with standard user-level access to gain elevated - potentially root - privileges on affected systems. The CVSS 7.8 High score reflects full confidentiality, integrity, and availability impact despite the local attack vector, making this a serious insider-threat and post-compromise escalation risk. IBM has released a patch; no public exploit code or CISA KEV listing has been identified at time of analysis.

Buffer Overflow Memory Corruption IBM +2
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Stack-based buffer overflow in IBM AIX 7.2 and 7.3, and IBM PowerVM VIOS 4.1 enables a local low-privileged attacker to execute arbitrary code, achieving full system compromise (C:H/I:H/A:H). The attack requires only a local account with standard user privileges and no user interaction, making post-authentication lateral movement or privilege escalation a realistic threat in IBM Power-based enterprise environments. No public exploit identified at time of analysis, but a vendor-released patch is available.

RCE Buffer Overflow IBM +3
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Stack-based buffer overflow in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 enables a local low-privileged attacker to execute arbitrary code, achieving full confidentiality, integrity, and availability compromise of the affected system. The CVSS score of 7.8 reflects the high post-exploitation impact despite the local attack vector requirement. No public exploit has been identified at time of analysis, and SSVC confirms no known exploitation activity, though the vendor has released a patch.

RCE Buffer Overflow Memory Corruption +3
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Heap-based buffer overflow in IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 enables a local, low-privileged attacker to execute arbitrary code, achieving full compromise of confidentiality, integrity, and availability. The vulnerability stems from unsafe memory writes (CWE-787) that corrupt heap structures at runtime. No public exploit code or active exploitation has been identified at time of analysis, and IBM has released a patch via the advisory at ibm.com/support/pages/node/7283858.

RCE Buffer Overflow Memory Corruption +3
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2 and 7.3, and IBM PowerVM VIOS 4.1 allows a low-privileged local user to gain elevated-likely root-level-access through improper privilege management (CWE-269). The CVSS 3.1 score of 7.8 (AV:L/AC:L/PR:L/UI:N) reflects low-complexity exploitation requiring only a standard local account with no user interaction. No public exploit code or CISA KEV listing has been identified at time of analysis, though IBM has released a patch via their support portal.

Privilege Escalation IBM Aix +1
NVD VulDB
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Local code execution via buffer overflow affects IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1, allowing a low-privileged local attacker to execute arbitrary code with a scope change that can compromise components beyond the initially vulnerable boundary. The CVSS vector (AV:L/AC:L/PR:L/UI:N/S:C) indicates exploitation requires only a local shell with standard user privileges and no interaction, yet the scope change elevates the impact to full CIA triad compromise. No public exploit identified at time of analysis, and a vendor-released patch is available from IBM.

RCE Buffer Overflow Memory Corruption +3
NVD VulDB
EPSS 0% CVSS 7.0
HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 allows a low-privileged local attacker to gain elevated - potentially root-level - privileges by winning a time-of-check to time-of-use (TOCTOU) race condition. The vulnerability carries a CVSS 7.0 score reflecting high attack complexity due to the inherent timing constraints of race condition exploitation, though successful exploitation yields total CIA impact (full system compromise). No public exploit code has been identified and CISA SSVC classifies exploitation status as none, consistent with the extremely low EPSS score of 0.12%.

Information Disclosure IBM Aix +1
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Privilege escalation via heap-based buffer overflow affects IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1, enabling a local attacker with standard user-level access to gain elevated - potentially root-level - privileges on the affected system. The CVSS scope-changed (S:C) rating confirms that successful exploitation extends control beyond the attacker's initial security context, threatening the entire host including virtual machine management infrastructure on PowerVM. No public exploit code has been identified at time of analysis, and IBM has released a patch via advisory node 7283858.

Buffer Overflow Memory Corruption IBM +2
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Arbitrary OS command execution via ODMDIR environment variable manipulation affects IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1, enabling local authenticated users to escalate privileges beyond their initial access boundary. The CVSS scope change (S:C) indicates that successful exploitation can compromise components outside the immediate process context - a critical concern for AIX systems hosting sensitive workloads. No public exploit has been identified at time of analysis and no CISA KEV listing exists, but a vendor patch is available through IBM's support portal.

Command Injection IBM Aix +1
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Denial of service via heap-based buffer overflow affects IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1, exploitable by remote unauthenticated attackers. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms no authentication or user interaction is required, making this a low-friction remote availability attack against IBM Power Systems infrastructure. No active exploitation or public exploit code has been identified at time of analysis; a vendor patch is available via IBM's support portal.

Buffer Overflow Denial Of Service Heap Overflow +3
NVD
EPSS 0% CVSS 7.0
HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 enables a low-privileged local attacker to gain root access by winning a time-of-check to time-of-use (TOCTOU) race condition. The attack requires local access and precise timing, reflected in the AC:H CVSS metric, which meaningfully constrains practical exploitability. No public exploit or active exploitation is identified; EPSS sits at 0.12% (2nd percentile), consistent with the SSVC 'Exploitation: none' classification, though SSVC also rates technical impact as total given that successful exploitation yields full root control.

Information Disclosure IBM Aix +1
NVD VulDB
EPSS 1% CVSS 9.1
CRITICAL PATCH Act Now

Arbitrary file overwrite in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 lets a remote attacker corrupt or replace files on the host due to improper neutralization of special elements in input (CWE-73). The CVSS 3.1 base score is 9.1 (I:H/A:H, no confidentiality impact), reflecting integrity and availability damage without data disclosure. No public exploit identified at time of analysis, but IBM has published a fix, and the network/low-complexity/no-privileges vector makes this a high-priority patch for exposed AIX and VIOS management interfaces.

Information Disclosure IBM Aix +1
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Privilege escalation on IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 allows any low-privileged local user to gain full system control by exploiting improper authorization checks (CWE-285). SSVC rates the technical impact as total, consistent with the CVSS C:H/I:H/A:H rating, meaning a successful attacker achieves complete compromise of confidentiality, integrity, and availability. No public exploit has been identified at time of analysis, and EPSS at 0.13% (3rd percentile) reflects negligible current exploitation pressure, though the low attack complexity makes this a meaningful insider-threat or post-compromise escalation risk.

Authentication Bypass Privilege Escalation IBM +2
NVD VulDB
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Denial of service in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 is achievable by unauthenticated remote attackers who send crafted IPsec packets that trigger an integer underflow (CWE-191) during decapsulation, causing an improper memory offset calculation that crashes the affected system. The CVSS vector confirms network-accessible, zero-authentication exploitation with low complexity, yielding a full availability impact with no confidentiality or integrity exposure. IBM has released a patch; no public exploit code or CISA KEV listing exists at time of analysis.

Denial Of Service Integer Overflow IBM +2
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 allows an authenticated local attacker with low-level access to gain elevated (likely root) privileges due to improper privilege management (CWE-269). The CVSS score of 7.8 reflects total confidentiality, integrity, and availability impact upon successful exploitation. No public exploit has been identified at time of analysis, EPSS is extremely low at 0.11% (2nd percentile), and SSVC confirms no observed exploitation, though technical impact is rated total if the flaw is triggered.

Privilege Escalation IBM Aix +1
NVD VulDB
EPSS 0% CVSS 7.0
HIGH PATCH This Week

Local arbitrary code execution is possible in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 through a TOCTOU race condition (CWE-367), where a low-privileged local attacker can manipulate a resource between its check and its use by a privileged process. The CVSS 7.0 score reflects high confidentiality, integrity, and availability impact, though the high attack complexity (AC:H) indicates the timing window must be won reliably. No public exploit code has been identified and the vulnerability is not listed in the CISA KEV catalog; IBM has released a patch via its support advisory.

RCE IBM Aix +1
NVD
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows an unauthenticated remote attacker to run arbitrary code by triggering a stack-based buffer overflow, per the vendor-assigned CVSS 3.1 vector of AV:N/AC:L/PR:N/UI:N. IBM (the reporting party) has published a fix, and no public exploit identified at time of analysis. EPSS and KEV signals were not provided, so the 9.8 CVSS score is currently the strongest available severity indicator.

RCE Buffer Overflow IBM +3
NVD
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Remote OS command injection in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows a network attacker to execute arbitrary operating-system commands due to improper neutralization of special elements (CWE-78). The CVSS 3.1 base score is 9.8 with a network, no-privilege, no-interaction vector, and IBM has published a fix. There is no public exploit identified at time of analysis and the flaw is not listed in CISA KEV, but the combination of unauthenticated remote code execution on enterprise UNIX and virtualization infrastructure makes this a high-priority patch.

Command Injection IBM Aix +1
NVD
EPSS 1% CVSS 8.8
HIGH PATCH This Week

Stack-based buffer overflow in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 enables remote authenticated attackers to execute arbitrary code, achieving full compromise of confidentiality, integrity, and availability. The CVSS 8.8 score reflects low-complexity network exploitation requiring only low-privilege authentication (PR:L), making it accessible to any credentialed user on the system. No public exploit identified at time of analysis, but a vendor-released patch is available from IBM.

RCE Buffer Overflow IBM +3
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Shell metacharacter injection in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 allows a local low-privileged attacker to execute arbitrary OS commands, resulting in complete confidentiality, integrity, and availability compromise per CVSS C:H/I:H/A:H. The root cause (CWE-78) is insufficient sanitization of special shell characters passed to an OS interpreter within an IBM-provided utility or script. IBM has released a patch; no public exploit has been identified at time of analysis, and the vulnerability is not listed in the CISA KEV catalog.

Command Injection IBM Aix +1
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 enables a low-privileged authenticated user to gain root access by bypassing RBAC role enforcement. The flaw (CWE-269: Improper Privilege Management) means the operating system fails to correctly enforce the boundaries between assigned RBAC roles, allowing a standard user to assume or exercise privileges reserved for root. IBM has released a patch; no public exploit code or CISA KEV listing has been identified at time of analysis.

Privilege Escalation IBM Aix +1
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 stems from an out-of-bounds write (CWE-787) that allows a low-privileged local attacker to achieve complete system compromise across confidentiality, integrity, and availability. The CVSS 7.8 score (AV:L/AC:L/PR:L/UI:N) reflects low-complexity exploitation requiring only a standard local account - a realistic threshold for insider threats or post-exploitation lateral movement within IBM Power environments. No public exploit code has been identified and this vulnerability is not listed in the CISA KEV catalog at time of analysis; however, the total C/I/A:H impact on high-value enterprise Unix systems warrants prompt patching.

Privilege Escalation Buffer Overflow Memory Corruption +3
NVD
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2/7.3 and IBM PowerVM VIOS 4.1 stems from a stack-based buffer overflow (CWE-121) that a network attacker can trigger without authentication or user interaction. Because the flaw carries a CVSS 9.8 with an AV:N/AC:L/PR:N/UI:N vector, a successful attack yields full compromise of confidentiality, integrity, and availability on affected enterprise UNIX hosts and virtualization I/O servers. There is no public exploit identified at time of analysis, and IBM (the reporter) has released a fix.

RCE Buffer Overflow IBM +3
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Local arbitrary code execution in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 stems from improperly scrubbed environment variables (CWE-426: Untrusted Search Path), allowing a low-privileged local user to inject malicious values such as PATH or LD_PRELOAD that are subsequently consumed by a privileged process. With a CVSS score of 7.8 (HIGH) and full confidentiality, integrity, and availability impact, successful exploitation yields arbitrary code execution at an elevated privilege level. No public exploit or CISA KEV listing has been identified at time of analysis, though a vendor patch is available via IBM support.

RCE IBM Aix +1
NVD VulDB
EPSS 2% CVSS 8.8
HIGH PATCH This Week

Command injection in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 enables an unauthenticated attacker with adjacent network access to execute arbitrary OS commands, achieving full compromise of confidentiality, integrity, and availability. The adjacent-network attack vector (AV:A) limits exposure to attackers already positioned on the same local network or VLAN as the affected system, which is a meaningful constraint in typical enterprise deployments of these platforms. No public exploit code and no active exploitation via CISA KEV have been identified at time of analysis; IBM has released a patch via its support portal.

RCE Command Injection IBM +2
NVD VulDB
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 lets a remote attacker overflow a stack buffer (CWE-787 out-of-bounds write) and run arbitrary code on the affected Power-based host. The flaw was reported by IBM, carries a critical 9.8 CVSS rating with a network, no-privilege, no-interaction vector, and a vendor patch is available; there is no public exploit identified at time of analysis and it is not listed in CISA KEV.

RCE Buffer Overflow Memory Corruption +3
NVD VulDB
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 stems from a stack buffer overflow (CWE-787) that a network-based attacker can trigger without authentication or user interaction, per the CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N). IBM has published a fix, and no public exploit has been identified at time of analysis, though the 9.8 base score reflects full compromise of confidentiality, integrity, and availability. The exact vulnerable service/daemon is not disclosed in the available data, which limits precise attack-surface scoping.

RCE Buffer Overflow Memory Corruption +3
NVD
EPSS 1% CVSS 8.2
HIGH PATCH This Week

Remote unauthenticated manipulation of network traffic and DNS configuration is possible in IBM AIX 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1, due to improper authentication controls (CWE-287). The CVSS 8.2 vector (AV:N/AC:L/PR:N/UI:N) confirms exploitation requires no credentials, no user interaction, and no special network positioning - making this accessible to any remote attacker with TCP connectivity to an affected system. No public exploit code has been identified at time of analysis, and CISA KEV listing has not been confirmed, but the low attack complexity and high integrity impact make this a meaningful priority for IBM Power Systems environments.

Authentication Bypass IBM Aix +1
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Remote denial of service in IBM AIX 7.2, AIX 7.3, and PowerVM VIOS 4.1 allows an unauthenticated network attacker to crash affected systems by triggering an integer overflow in a network-reachable component. The CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H vector confirms full availability loss with no authentication or user interaction required. No public exploit code has been identified at time of analysis, and this CVE does not appear in the CISA Known Exploited Vulnerabilities catalog; however, the low attack complexity means opportunistic exploitation is feasible once technical details become public.

Denial Of Service Integer Overflow IBM +2
NVD VulDB
EPSS 0% CVSS 7.4
HIGH PATCH This Week

Denial of service via use-after-free in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows an unauthenticated attacker on an adjacent network to crash affected systems by triggering a memory corruption condition. The scope change (S:C) in the CVSS vector is significant in virtualization contexts: a successful attack against PowerVM VIOS could cascade to hosted virtual machines, amplifying the availability impact beyond the directly targeted component. No public exploit code or active exploitation has been identified at time of analysis; a vendor patch is available.

Denial Of Service Use After Free Memory Corruption +3
NVD VulDB
EPSS 2% CVSS 8.8
HIGH PATCH This Week

Remote code execution in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 is achievable by an unauthenticated attacker on the same network segment via command injection triggered by crafted IPv6 Router Advertisement messages. The vulnerability (CWE-269, Improper Privilege Management) implies the RA processing subsystem executes injected commands with elevated OS-level privileges, enabling full confidentiality, integrity, and availability compromise of the affected host. No public exploit has been identified at time of analysis; IBM has released a patch per advisory https://www.ibm.com/support/pages/node/7283858.

Privilege Escalation RCE Command Injection +3
NVD VulDB
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Arbitrary command execution against IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 is possible by an unauthenticated attacker on the same network segment who can deliver DHCP option values containing unescaped shell metacharacters to the system's DHCP client. The DHCP client fails to neutralize these metacharacters before passing option data to shell processing (CWE-78), enabling full confidentiality, integrity, and availability compromise of the target host. A vendor patch is available via IBM support, and no public exploit or CISA KEV listing has been identified at time of analysis.

Command Injection IBM Aix +1
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Heap buffer overflow in IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 enables unauthenticated adjacent-network attackers to execute arbitrary code on affected systems. The CWE-787 out-of-bounds write flaw carries a CVSS score of 8.8 and yields full confidentiality, integrity, and availability compromise upon successful exploitation. No public exploit code or CISA KEV listing has been identified at time of analysis; however, a vendor-supplied patch is available via IBM support advisory node/7283858.

RCE Buffer Overflow Memory Corruption +3
NVD
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2/7.3 and IBM PowerVM VIOS 4.1 allows a remote attacker to run arbitrary code by triggering a heap buffer overflow (CWE-787 out-of-bounds write) in an affected network-facing component. The CVSS 9.8 vector (AV:N/AC:L/PR:N/UI:N) indicates unauthenticated, low-complexity network exploitation with full confidentiality, integrity, and availability impact. IBM has published a fix; no public exploit identified at time of analysis and no CISA KEV listing, so this is currently a high-severity but not confirmed-exploited issue.

RCE Buffer Overflow Memory Corruption +3
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

OS command injection in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 enables an unauthenticated attacker with adjacent network access to execute arbitrary operating system commands without any user interaction. The flaw (CWE-78) resides in a network-exposed component that fails to neutralize shell metacharacters before incorporating user-supplied input into OS commands, granting full confidentiality, integrity, and availability impact. No public exploit has been identified at time of analysis, but a vendor patch is available via IBM support advisory.

Command Injection IBM Aix +1
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

OS command injection in IBM AIX 7.2/7.3 and IBM PowerVM VIOS 4.1 allows an adjacent network attacker without credentials to execute arbitrary operating system commands. The flaw (CWE-78) arises from improper neutralization of special elements passed to OS command constructors, exposing the full confidentiality, integrity, and availability of affected hosts. No public exploit or CISA KEV listing has been identified at time of analysis, though a vendor patch is available via IBM Support.

Command Injection IBM Aix +1
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Stack buffer overflow in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 enables unauthenticated remote code execution by any attacker with adjacent network access. The flaw (CWE-787, Out-of-bounds Write) corrupts stack memory during processing of a crafted network payload, allowing an attacker to overwrite return addresses and redirect execution without requiring credentials or user interaction. No public exploit has been identified at time of analysis and IBM has released a patch, but the AV:A/PR:N/AC:L vector makes this a high-priority fix for any organization running IBM Power Systems infrastructure.

RCE Buffer Overflow Memory Corruption +3
NVD
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Remote code execution in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows a remote attacker to run arbitrary code by triggering an out-of-bounds write (CWE-787) in an affected component. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) indicates the flaw is reachable over the network by unauthenticated attackers with low complexity, yielding full compromise of confidentiality, integrity, and availability. IBM has released a fix; there is no public exploit identified at time of analysis and the CVE is not listed in CISA KEV.

RCE Buffer Overflow Memory Corruption +3
NVD
EPSS 1% CVSS 9.4
CRITICAL PATCH Act Now

Remote information disclosure in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 stems from an integer underflow in the kernel's IPv4 IP-options parser (CWE-125 out-of-bounds read), letting a remote attacker leak sensitive memory contents by sending crafted IP packets. IBM (the reporting vendor) rates it CVSS 9.4, and a patch is available. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.

Buffer Overflow Information Disclosure IBM +2
NVD
EPSS 0% CVSS 7.0
HIGH PATCH This Week

TOCTOU race condition in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 permits a local, low-privileged user to overwrite critical system files or extract sensitive information by exploiting the timing gap between a file-check and file-use operation. The attack is constrained to local access with high exploitation complexity, yet the potential impact spans full confidentiality, integrity, and availability compromise of the affected system. No public exploit or CISA KEV listing exists at time of analysis; IBM has released a vendor patch.

Information Disclosure IBM Aix +1
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Remote denial of service in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows unauthenticated network attackers to crash or exhaust resources in the SSL subsystem by omitting an expected client certificate during the TLS handshake. The CVSS 7.5 rating (AV:N/AC:L/PR:N/UI:N) confirms low attack complexity with no authentication required, making exploitation straightforward against any exposed SSL service on affected systems. No public exploit code and no CISA KEV listing have been identified at time of analysis, but the patch is available and should be prioritized for internet-facing AIX and VIOS deployments.

Denial Of Service IBM Aix +1
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Denial of service in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 enables unauthenticated remote attackers to exhaust system resources via network-delivered input, fully disabling availability (CVSS A:H) without any confidentiality or integrity impact. The vulnerability is rooted in CWE-400 uncontrolled resource consumption, triggered from the network with no authentication or user interaction required (AV:N/AC:L/PR:N/UI:N). No public exploit code or active exploitation has been identified at time of analysis; a vendor patch is available from IBM.

Denial Of Service IBM Aix +1
NVD
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Denial of service in IBM AIX 7.2/7.3 and IBM PowerVM VIOS 4.1 lets a remote attacker crash or hang the affected system by triggering an integer underflow (CWE-190) in a network-reachable component. The flaw was reported by IBM, which has released a fix; no public exploit code has been identified at time of analysis and it is not listed in CISA KEV. Note that IBM's published CVSS 9.8 claims full confidentiality/integrity/availability impact, which conflicts with the description's DoS-only wording.

Denial Of Service Integer Overflow IBM +2
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Denial of service in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 allows unauthenticated remote attackers to exhaust system resources and render affected systems unavailable by sending crafted network input that triggers uncontrolled resource consumption (CWE-400). The CVSS 3.1 vector of AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H confirms low-complexity, unauthenticated remote exploitability with a high availability impact. No active exploitation has been confirmed in CISA KEV, and no public exploit code is known at time of analysis; a vendor patch is available via IBM's support portal.

Denial Of Service IBM Aix +1
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Unbounded recursion in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 exposes these systems to remote denial-of-service attacks requiring no authentication or user interaction. Network-reachable attackers can trigger uncontrolled resource consumption, exhausting stack or memory resources and disrupting availability of affected systems. No public exploit code has been identified and CISA KEV does not list this vulnerability; a vendor-released patch is available via IBM's support portal.

Denial Of Service IBM Aix +1
NVD
EPSS 0% CVSS 9.3
CRITICAL PATCH Act Now

TNC policy server impersonation in IBM AIX 7.2/7.3 and IBM PowerVM VIOS 4.1 lets a network-positioned attacker forge the Trusted Network Connect policy server and tamper with the traffic between it and the endpoint, because the client fails to properly validate the server's certificate (CWE-295). An attacker who can intercept the session can present a fraudulent certificate, read limited data and alter integrity-critical policy exchanges. IBM has released a fix; no public exploit identified at time of analysis, and the issue is not listed in CISA KEV.

Information Disclosure IBM Aix +1
NVD
EPSS 0% CVSS 7.7
HIGH PATCH This Week

IBM AIX 7.2 and 7.3, along with IBM PowerVM VIOS 4.1, expose a time-of-check time-of-use (TOCTOU) race condition that local, unprivileged attackers can exploit to corrupt data integrity or crash the system. The flaw requires only local shell access with no privileges, making it exploitable by any local user account on affected POWER-architecture systems. No public exploit code or CISA KEV listing exists at time of analysis, though a vendor patch is available.

Denial Of Service IBM Aix +1
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Uncontrolled resource consumption in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 exposes these systems to remote denial-of-service attacks requiring no authentication or user interaction. The CVSS vector AV:N/AC:L/PR:N/UI:N confirms any network-reachable attacker can trigger availability loss without special privileges. No public exploit code or active exploitation (CISA KEV) has been identified at time of analysis, and a vendor patch is available.

Denial Of Service IBM Aix +1
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

IBM AIX 7.2 and 7.3, and PowerVM VIOS 4.1 expose an unauthenticated remote denial-of-service condition rooted in a NULL pointer dereference. A remote attacker with no credentials or user interaction can crash affected network-accessible components, resulting in complete availability loss (A:H) with no confidentiality or integrity impact. No public exploit code or active exploitation has been confirmed at time of analysis, and IBM has released a patch via advisory https://www.ibm.com/support/pages/node/7283858.

Denial Of Service Null Pointer Dereference IBM +2
NVD
EPSS 1% CVSS 9.9
CRITICAL PATCH Act Now

OS command injection in IBM AIX 7.2 and 7.3 and in IBM PowerVM VIOS 4.1 lets a remote, authenticated attacker execute arbitrary operating-system commands due to improper neutralization of special elements (CWE-78). Rated CVSS 9.9 with a scope change, a successful low-privilege attacker can break out of the application context and run commands on the underlying enterprise Unix host, threatening confidentiality, integrity, and availability. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the near-maximum score and network reachability make it a high-priority patch.

Command Injection IBM Aix +1
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Heap buffer overflow in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 enables unauthenticated remote code execution by attackers positioned on an adjacent network segment, with no user interaction required. The flaw (CWE-787, out-of-bounds write) results in full compromise of confidentiality, integrity, and availability of the affected system. A vendor patch has been released via IBM advisory; no public exploit code or CISA KEV listing has been identified at time of analysis.

RCE Buffer Overflow Memory Corruption +3
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Remote denial-of-service in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 is caused by a CWE-787 out-of-bounds write reachable by unauthenticated network attackers with no complexity prerequisites. The CVSS 3.1 score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) reflects straightforward remote triggering with high availability impact but no confidentiality or integrity consequence. IBM has released a patch via the vendor advisory; no public exploit code has been identified at time of analysis.

Buffer Overflow Denial Of Service Memory Corruption +3
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Local privilege escalation in IBM AIX 7.2 and 7.3, and IBM PowerVM VIOS 4.1 allows an authenticated low-privileged user to gain full elevated privileges due to improper privilege management (CWE-269). The CVSS vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) confirms that any standard local user account is sufficient to trigger the flaw with low complexity and no user interaction, resulting in complete confidentiality, integrity, and availability compromise of the affected system. No public exploit identified at time of analysis, and a vendor patch is available via IBM advisory.

Privilege Escalation IBM Aix +1
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Remote denial-of-service in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 enables an unauthenticated network attacker to exhaust system resources and crash or severely degrade affected hosts. The root cause is uncontrolled resource consumption (CWE-400), exploitable without authentication or user interaction via a network-accessible service. No public exploit code or active exploitation has been identified at time of analysis; IBM has released a patch addressed in advisory node/7283858.

Denial Of Service IBM Aix +1
NVD
EPSS 1% CVSS 8.2
HIGH PATCH This Week

Unauthenticated remote access to NFS-exported filesystems is possible in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 due to improper authentication (CWE-287). The CVSS vector AV:N/AC:L/PR:N/UI:N confirms that unauthenticated remote attackers on the network can exploit this with low complexity and no user interaction, gaining high-confidence read access and limited write access to exported filesystem data. No public exploit has been identified at time of analysis, and IBM has released a patch via advisory 7283858.

Authentication Bypass IBM Aix +1
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Remote denial of service in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 is exploitable by unauthenticated attackers who send malformed client registration packets to the NIM (Network Installation Manager) server, triggering a classic buffer overflow that crashes the nimserver daemon. The CVSS 7.5 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) confirms low-complexity, network-accessible exploitation requiring no privileges, though impact is strictly limited to availability - no confidentiality or integrity exposure is present. IBM has released a patch via support advisory 7283858; no public exploit code has been identified and this vulnerability does not appear on the CISA KEV catalog at time of analysis.

Buffer Overflow IBM Aix +1
NVD
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Remote privilege escalation to root in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 stems from an improper authentication weakness (CWE-287) that lets an unauthenticated network attacker bypass identity checks and obtain root-level control. The CVSS 9.8 rating reflects a network-reachable, low-complexity flaw requiring no privileges or user interaction, with full confidentiality, integrity, and availability impact. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the severity and unauthenticated network vector make it a high-priority patching target for IBM Power estates.

Authentication Bypass IBM Aix +1
NVD
EPSS 0% CVSS 8.1
HIGH PATCH This Week

Improper TLS certificate validation in the NIM (Network Installation Management) subsystem of IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 enables remote attackers to gain unauthorized access to AIX systems by exploiting the failure to verify certificate authenticity during NIM communications. The CVSS 8.1 High score reflects high confidentiality and integrity impact across a network-exploitable path with low complexity and no user interaction required. No public exploit identified at time of analysis, but the authentication bypass classification of this flaw makes it a meaningful privilege escalation and lateral movement risk in IBM Power environments.

Authentication Bypass IBM Aix +1
NVD
EPSS 1% CVSS 9.9
CRITICAL PATCH Act Now

OS command injection in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 lets a remote authenticated attacker run arbitrary commands through the Network Installation Manager (NIM) component. Because NIM typically operates with high (often root-level) privilege and the CVSS scope is Changed, successful exploitation can compromise the underlying operating system with full confidentiality, integrity, and availability impact. There is no public exploit identified at time of analysis and it is not on CISA KEV, but the 9.9 base score and low attack complexity make it a high-priority patch for IBM Power estates.

Command Injection IBM Aix +1
NVD
EPSS 1% CVSS 9.1
CRITICAL PATCH Act Now

Sensitive-key exposure in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 Network Installation Management (NIM) leaks intermediate certificate authority (CA) private keys inside a publicly downloadable update file, letting remote attackers forge trusted certificates and bypass security restrictions. Rated CVSS 9.1, the flaw impacts confidentiality and integrity (C:H/I:H) but not availability, and IBM has released a fix. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the ease of obtaining a live CA key makes this a high-priority credential-hygiene issue.

Authentication Bypass IBM Aix +1
NVD
EPSS 1% CVSS 8.2
HIGH PATCH This Week

Unauthenticated remote file overwrite in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 is possible via the nimesis registration service, which fails to sanitize path traversal sequences in client-supplied input. An attacker with network access to the nimesis service can write arbitrary content to locations outside the intended directory, potentially overwriting sensitive system files such as cron jobs, init scripts, or authentication databases. No public exploit or active exploitation has been identified at time of analysis, though the CVSS vector (AV:N/AC:L/PR:N/UI:N) indicates this is straightforwardly exploitable without authentication.

Path Traversal IBM Aix +1
NVD
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

NULL pointer dereference in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 allows a local low-privileged attacker to crash the system, causing a denial of service. Exploitation requires high attack complexity, suggesting a race condition or specific system state must be induced. No public exploit code exists and this vulnerability is not listed in the CISA KEV catalog; a vendor patch is available via IBM support.

Denial Of Service Null Pointer Dereference IBM +2
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

Symlink following vulnerability in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 allows a local low-privileged attacker to cause a denial of service - and potentially file corruption - through improper symbolic link validation (CWE-59). The CVSS vector (AV:L/AC:H/PR:L/I:H/A:H) indicates exploitation requires local access, a race-condition timing window, and results in both high integrity and availability impact despite the DoS classification. No public exploit code has been identified and this CVE is not listed in the CISA KEV catalog; IBM has released a patch.

Denial Of Service IBM Aix +1
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

Kernel memory disclosure in IBM AIX 7.2 and 7.3, and IBM PowerVM VIOS 4.1 allows a local attacker with standard user privileges to read sensitive out-of-bounds kernel memory via an unspecified vulnerability. The CVSS vector (AV:L/AC:L/PR:L/UI:N) confirms exploitation requires only a local shell account with no elevated rights, making it viable for any authenticated local user or a compromised service account. No public exploit code has been identified at time of analysis, and IBM has released a patch via the vendor advisory.

Buffer Overflow Information Disclosure IBM +2
NVD
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 expose sensitive information over the network, enabling remote unauthenticated attackers to intercept in-flight messages and forge replies. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms exploitation requires no credentials or user interaction, making any network-adjacent attacker a potential threat. No public exploit code has been identified and the vulnerability is not listed in the CISA KEV catalog; IBM has released a patch.

Information Disclosure IBM Aix +1
NVD
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

Uncontrolled resource consumption in IBM AIX 7.2 and 7.3, and IBM PowerVM VIOS 4.1, enables a local low-privileged attacker to exhaust system resources and trigger a denial of service condition. The vulnerability is classified under CWE-400 and carries a CVSS 3.1 base score of 5.5 with a local attack vector requiring low privileges. IBM has released a patch via advisory 7283858; no active exploitation or public proof-of-concept code has been identified at time of analysis.

Denial Of Service IBM Aix +1
NVD VulDB
EPSS 0% CVSS 6.7
MEDIUM PATCH This Month

Heap-based buffer overflow in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 enables a local authenticated attacker with high privileges to execute arbitrary code on affected systems. The vulnerability is rooted in improper memory management (CWE-787) and carries a CVSS 3.1 score of 6.7, reflecting the local access requirement and elevated privilege prerequisite that constrain real-world exploitability. IBM has released a patch via its support portal; no public exploit code or CISA KEV listing has been identified at time of analysis.

RCE Buffer Overflow Memory Corruption +3
NVD VulDB
EPSS 0% CVSS 3.7
LOW PATCH Monitor

Path traversal in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 exposes sensitive files to remote, unauthenticated attackers over the network. The flaw (CWE-22) allows directory traversal sequences to escape an intended path boundary, enabling read access to files that should not be externally accessible. No active exploitation has been confirmed by CISA KEV, and no public exploit code has been identified at time of analysis.

Path Traversal IBM Aix +1
NVD
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

Out-of-bounds memory read in IBM AIX 7.2 and 7.3, and IBM PowerVM VIOS 4.1 exposes sensitive system memory to locally authenticated users holding low-privilege accounts. The flaw (CWE-125) allows an attacker with existing local access to read memory contents beyond intended buffer boundaries, producing high confidentiality impact while leaving system integrity and availability unaffected. No public exploit code or CISA KEV listing has been identified at time of analysis; IBM has released a patch via advisory 7283858.

Buffer Overflow Information Disclosure IBM +2
NVD
EPSS 0% CVSS 4.8
MEDIUM PATCH This Month

Out-of-bounds read (CWE-125) in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 exposes a remotely reachable attack surface that allows unauthenticated network attackers to cause a denial of service under high-complexity conditions. The CVSS vector also records a limited integrity impact (I:L), which is inconsistent with the description's exclusive mention of denial of service and warrants verification against the vendor advisory. No public exploit code or active exploitation has been identified; a vendor patch is available from IBM.

Buffer Overflow Denial Of Service Information Disclosure +3
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

Heap buffer overflow in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 enables a local low-privileged attacker to crash the system, resulting in a denial of service. The flaw is rooted in improper bounds checking during heap memory operations (CWE-787). No public exploit code has been identified at time of analysis, and the vulnerability is not listed in CISA KEV; however, a vendor-released patch is available via IBM advisory node/7283858.

Buffer Overflow Denial Of Service Memory Corruption +3
NVD VulDB
EPSS 0% CVSS 4.3
MEDIUM PATCH This Month

Denial of service in IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 is achievable by unauthenticated remote attackers positioned on an adjacent network segment, exploiting an improper array index boundary check (CWE-129). The flaw allows a crafted network request to trigger an out-of-bounds array access, crashing or degrading availability of the affected system. No active exploitation has been confirmed by CISA KEV, and no public proof-of-concept has been identified at time of analysis; a vendor patch is available via IBM Support.

Denial Of Service IBM Aix +1
NVD
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

Denial of service in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 is achievable by an adjacent-network attacker exploiting a null pointer dereference, capable of crashing the targeted system without requiring authentication or user interaction. The vulnerability affects IBM's enterprise UNIX operating system and its PowerVM Virtual I/O Server layer, where availability is operationally critical for hosted workloads. No public exploit code has been identified at time of analysis, and IBM has released a remediation patch via official advisory.

Denial Of Service Null Pointer Dereference IBM +2
NVD
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