EUVD-2026-63383
GHSA-44cj-fh2c-jfx7
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local attack vector with low-privilege account required; no interaction or complexity needed; full CIA impact upon successful privilege escalation to root.
Primary rating from Vendor (ibm).
CVSS VectorNVD
Lifecycle Timeline
5DescriptionNVD
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to gain elevated privileges due to improper privilege management.
AnalysisAI
Local privilege escalation in IBM AIX 7.2, 7.3 and IBM PowerVM VIOS 4.1 allows an authenticated local attacker with low-level access to gain elevated (likely root) privileges due to improper privilege management (CWE-269). The CVSS score of 7.8 reflects total confidentiality, integrity, and availability impact upon successful exploitation. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must have an existing local session or account on the affected IBM AIX or PowerVM VIOS system with at least low-privilege access (PR:L per CVSS vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS base score of 7.8 (High) is driven by total C/H/I/A impact despite the local-only attack vector, reflecting the severity of a full privilege escalation to root or equivalent. … 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 for this vulnerability, available via the IBM support portal at https://www.ibm.com/support/pages/node/7283858. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all AIX 7.2, 7.3, and PowerVM VIOS 4.1 deployments to identify critical systems and prioritize remediation scope. …
Sign in for detailed remediation steps and compensating controls.
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Same weakness CWE-269 – Improper Privilege Management
View allSame technique Privilege Escalation
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External POC / Exploit Code
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