EUVD-2026-63740
GHSA-j5cx-55qm-78rc
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Local access and high privileges are required to reach the parsing component; only availability is impacted, with no confidentiality or integrity effect consistent with a resource exhaustion DoS.
Primary rating from NVD.
CVSS VectorNVD
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 uncontrolled resource consumption when parsing directory records.
AnalysisAI
Uncontrolled resource consumption in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 allows a local high-privileged attacker to cause a denial of service by supplying crafted directory records to the vulnerable parsing component. The CVSS vector (AV:L/PR:H) confirms that exploitation is constrained to authenticated local actors with elevated privileges, limiting the realistic threat pool considerably. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires local authenticated access to the target system with high-privilege credentials, as confirmed by the CVSS vector (AV:L/PR:H). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS base score of 4.4 (Medium) accurately reflects a constrained risk profile: attack vector is local (AV:L), complexity is low (AC:L), but high privileges are required (PR:H), and scope is unchanged (S:U) with only availability impact (A:H). … 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 security advisory at https://www.ibm.com/support/pages/node/7283858 for official patch details. … Detailed patch versions, workarounds, and compensating controls in full report. |
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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-400 – Uncontrolled Resource Consumption
View allSame technique Denial Of Service
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External POC / Exploit Code
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