EUVD-2026-63747
GHSA-qmwv-hv6r-2v25
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local attack requiring a low-privilege account; unvalidated pointer dereference yields full C/I/A impact with no user interaction needed.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
5DescriptionNVD
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to execute arbitrary code due to improper validation of an attacker-controlled pointer.
AnalysisAI
Arbitrary code execution on IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 stems from a CWE-822 untrusted pointer dereference, where a locally authenticated, low-privilege attacker can supply a crafted pointer value that the OS or VIOS component fails to validate before dereferencing. Successful exploitation yields full confidentiality, integrity, and availability compromise of the affected system (CVSS 7.8 High, C:H/I:H/A:H). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an existing local account on the affected AIX 7.2/7.3 or PowerVM VIOS 4.1 system with at least low-privilege interactive access (PR:L per CVSS). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 7.8 High with AV:L/AC:L/PR:L/UI:N reflects a locally exploitable flaw requiring only a standard unprivileged account and no complex setup. … 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 official APARs (Authorized Program Analysis Reports) and interim fixes specific to AIX 7.2, AIX 7.3, and VIOS 4.1. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all systems running AIX 7.2/7.3 or PowerVM VIOS 4.1 and restrict local system access to essential administrators only, reviewing sudo and SSH configurations. …
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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 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 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
Improper authentication in IBM AIX 7.2 and 7.3, and in IBM PowerVM VIOS 4.1, allows a remote attacker to execute arbitra
Remote code execution in IBM AIX 7.2 and 7.3 (and IBM PowerVM VIOS 4.1) stems from a stack-based buffer overflow that le
Remote code execution in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 stems from a buffer overflow (out-of-bounds write) that a
Remote code execution in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 stems from a buffer overflow (out-of-bounds write) that a
Remote code execution in IBM AIX 7.2 and 7.3, and IBM PowerVM VIOS 4.1, stems from a stack-based buffer overflow (CWE-78
Same weakness CWE-822 – Untrusted Pointer Dereference
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External POC / Exploit Code
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