EUVD-2026-62825
GHSA-gmv6-827v-h945
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Local-only attack vector and low-privilege requirement are consistent with the description; out-of-bounds read yields partial confidentiality loss only, with no integrity or availability impact.
Primary rating from Vendor (us).
CVSS VectorVendor: us
Lifecycle Timeline
1DescriptionCVE.org
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to obtain sensitive information due to an out-of-bounds read.
AnalysisAI
Out-of-bounds memory read in IBM AIX 7.2/7.3 and PowerVM VIOS 4.1 allows a local authenticated attacker to disclose sensitive information from adjacent memory regions. The flaw is constrained entirely to local access with low privileges, yielding a CVSS score of 3.3 (Low), and poses greatest risk in shared or multi-tenant Power Systems environments where untrusted users hold shell access. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated local session on the target IBM AIX 7.2/7.3 or PowerVM VIOS 4.1 system with at least low-privilege credentials, as confirmed by CVSS vector AV:L/PR:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.3 (Low) score is internally consistent with the vector AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - local-only access, low privilege threshold, no scope change, and limited confidentiality impact collectively constrain 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 | Consult the IBM security advisory at https://www.ibm.com/support/pages/node/7283858 for APARs, interim fixes, or technology level updates addressing CVE-2026-16891 on AIX 7.2, 7.3, and PowerVM VIOS 4.1 - no exact patched version number was independently confirmed from the provided input data, so the advisory is the authoritative source. … Detailed patch versions, workarounds, and compensating controls in full report. |
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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-125 – Out-of-bounds Read
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External POC / Exploit Code
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