EUVD-2026-63641
GHSA-jg5p-q458-f282
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
A remote unauthenticated buffer-overflow RCE with no user interaction gives AV:N/AC:L/PR:N/UI:N and full C:H/I:H/A:H; scope unchanged absent evidence of crossing a security boundary.
Primary rating from Vendor (ibm).
CVSS VectorVendor: ibm
Lifecycle Timeline
2DescriptionCVE.org
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to a buffer overflow.
AnalysisAI
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. …
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
Vulnerability AssessmentAI
| Exploitation | The available data specifies no special product feature, configuration flag, or deployment mode as a prerequisite - the CVSS vector (AV:N/AC:L/PR:N/UI:N) implies remote unauthenticated exploitation with no user interaction against the affected AIX/VIOS versions. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The signals point to a genuinely high-priority issue rather than a high-CVSS-but-low-real-risk case: the CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) describes remote, low-complexity, unauthenticated exploitation with full C/I/A impact, and a buffer-overflow RCE in a network-reachable OS/appliance component is the kind of flaw that tends to attract exploit development. … 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 | Apply the IBM-provided fix as the primary remediation - Patch available per vendor advisory at https://www.ibm.com/support/pages/node/7283858 - and consult that page for the specific APAR/ifix or technology-level update matching your AIX 7.2, AIX 7.3, or PowerVM VIOS 4.1 build (no exact fixed version string is provided in the input, so do not assume a version). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, conduct a complete inventory of IBM AIX 7.2, 7.3, and PowerVM VIOS 4.1 systems in production and identify which are network-accessible or critical to operations. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
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
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
IBM AIX contains an unspecified vulnerability that would allow a locally authenticated user to obtain root level privile
IBM AIX 5.3, 6.1, 7.1, and 7.2 contains an unspecified vulnerability that would allow a locally authenticated user to ob
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
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
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
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
OS command injection in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 lets a remote, low-privileged authenticated attacker ru
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
OS command injection in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 lets a remote authenticated attacker run arbitrary commands
IBM AIX 7.2 and 7.3 nimesis NIM master service could allow a remote attacker to execute arbitrary commands due to improp
Same weakness CWE-120 – Classic Buffer Overflow
View allSame technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today