Skip to main content

IBM AIX EUVDEUVD-2026-62862

| CVE-2026-16886 MEDIUM
Out-of-bounds Write (CWE-787)
2026-08-19 psirt@us.ibm.com GHSA-2283-rgwg-xmpq
4.3
CVSS 3.1 · Vendor: us
Share

Severity by source

Vendor (us) PRIMARY
4.3 MEDIUM
AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
vuln.today AI
6.5 MEDIUM

AV:A per adjacent-network constraint; PR:N confirmed by provided vector; A:H assessed independently because an out-of-bounds write in an OS kernel or hypervisor realistically causes a full system crash rather than merely degraded service.

3.1 AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0 AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (us).

CVSS VectorVendor: us

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Lifecycle Timeline

2
Analysis Generated
Aug 19, 2026 - 21:02 vuln.today
CVE Published
Aug 19, 2026 - 20:17 nvd
MEDIUM 4.3

DescriptionCVE.org

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to an out-of-bounds write.

AnalysisAI

Denial of service in IBM AIX 7.2 and 7.3 and IBM PowerVM VIOS 4.1 is achievable by an unauthenticated adjacent-network attacker exploiting an out-of-bounds write (CWE-787) in a network-accessible component. Successful exploitation crashes or degrades the target system without impacting confidentiality or data integrity. …

Unlock full vulnerability intelligence

  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
  • Threat intelligence from 22 sources
  • Personal watchlist & email alerts

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
technique details hidden
Execution
technique details hidden
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation The attacker must have layer-2 or adjacent-network reachability to the target AIX or VIOS system - AV:A precludes opportunistic internet-scale exploitation and requires the attacker to be on the same LAN, VLAN, or broadcast domain. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS base score of 4.3 (Medium) reflects an adjacent-network vector (AV:A) and low availability impact (A:L), which substantially limits real-world reach compared to internet-exposed flaws. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Consult the IBM support advisory at https://www.ibm.com/support/pages/node/7283858 for patch availability and exact fix versions; no specific patched build number was provided in the available data, so patch status is confirmed available per vendor advisory but the exact fix version must be retrieved directly from IBM Fix Central or the advisory page. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

More in Aix

View all
CVE-2014-3566 LOW POC
3.4 Oct 15

The SSL protocol 3.0, as used in OpenSSL through 1.0.1i and other products, uses nondeterministic CBC padding, which mak

CVE-2013-4011 HIGH POC
7.2 Jul 18

Multiple unspecified vulnerabilities in the InfiniBand subsystem in IBM AIX 6.1 and 7.1, and VIOS 2.2.2.2-FP-26 SP-02, a

CVE-2023-28528 HIGH POC
7.8 Apr 28

IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the invscout c

CVE-2016-3053 HIGH POC
7.8 Feb 01

IBM AIX contains an unspecified vulnerability that would allow a locally authenticated user to obtain root level privile

CVE-2016-6079 HIGH POC
7.8 Feb 15

IBM AIX 5.3, 6.1, 7.1, and 7.2 contains an unspecified vulnerability that would allow a locally authenticated user to ob

CVE-2016-8972 HIGH POC
7.8 Feb 15

IBM AIX 6.1, 7.1, and 7.2 could allow a local user to gain root privileges using a specially crafted command within the

CVE-2014-8904 HIGH POC
7.2 Jan 15

lquerylv in cmdlvm in IBM AIX 5.3, 6.1, and 7.1 and VIOS 2.2.x allows local users to gain privileges via a crafted DBGCM

CVE-2012-2179 MEDIUM POC
6.9 Jun 22

libodm.a in IBM AIX 5.3, 6.1, and 7.1 allows local users to overwrite arbitrary files via a symlink attack on a temporar

CVE-2014-3977 MEDIUM POC
6.9 Jun 08

libodm.a in IBM AIX 6.1 and 7.1, and VIOS 2.2.x, allows local users to overwrite arbitrary files via a symlink attack on

CVE-2026-18835 CRITICAL
9.9 Aug 20

OS command injection in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 lets a remote, low-privileged authenticated attacker ru

CVE-2026-16816 CRITICAL
9.9 Aug 19

OS command injection in IBM AIX 7.2 and 7.3 and in IBM PowerVM VIOS 4.1 lets a remote, authenticated attacker execute ar

CVE-2026-15068 CRITICAL
9.9 Aug 19

OS command injection in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 lets a remote authenticated attacker run arbitrary commands

Share

EUVD-2026-62862 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy