EUVD-2026-63638
GHSA-46vx-2rvq-xfxq
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Local access with low privileges required; AC:H reflects race condition; impact strictly limited to system availability with no confidentiality or integrity effect.
Primary rating from Vendor (ibm).
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
2DescriptionNVD
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to cause a denial of service due to a NULL pointer dereference.
AnalysisAI
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. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Local authenticated access with at least low-privilege credentials (PR:L) is required - remote unauthenticated exploitation is not possible given AV:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 4.7 (Medium) accurately reflects constrained real-world risk. … 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 | A vendor-released patch is available from IBM. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
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OS command injection in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 lets a remote authenticated attacker run arbitrary commands
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Same weakness CWE-476 – NULL Pointer Dereference
View allSame technique Null Pointer Dereference
View allShare
External POC / Exploit Code
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