EUVD-2026-63695
GHSA-32cp-35hr-qjc9
Severity by source
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Local-only attack requiring high-privilege credentials; heap overflow achieves full C/I/A impact but scope remains unchanged within the affected partition.
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 local authenticated attacker to execute arbitrary code due to a heap-based buffer overflow.
AnalysisAI
Heap-based buffer overflow in IBM AIX 7.2, 7.3 and PowerVM VIOS 4.1 enables a local authenticated attacker with high privileges to execute arbitrary code on affected systems. The vulnerability is rooted in improper memory management (CWE-787) and carries a CVSS 3.1 score of 6.7, reflecting the local access requirement and elevated privilege prerequisite that constrain real-world exploitability. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires local, authenticated access to the affected IBM AIX or PowerVM VIOS system with high-privilege credentials, as indicated by CVSS PR:H. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H reflects a locally exploitable vulnerability requiring high-privilege authentication, which substantially narrows the attack surface. … 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 | IBM has released a patch addressing this vulnerability, available through the IBM support portal at https://www.ibm.com/support/pages/node/7283858. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-787 – Out-of-bounds Write
View allSame technique Memory Corruption
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External POC / Exploit Code
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