CVE-2026-16923
Received Received - Intake

Improper Privilege Management in IBM AIX and PowerVM VIOS

Publication date: 2026-08-20

Last updated on: 2026-08-20

Assigner: IBM Corporation

Description
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.

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Meta Information

Published
2026-08-20
Last Modified
2026-08-20
Generated
2026-08-20
AI Q&A
2026-08-20
EPSS Evaluated
N/A
NVD
CVE-2026-16923
EUVD
EUVD-2026-63383

Affected Vendors & Products

Showing 6 associated CPEs
Vendor Product Version / Range
ibm aix From 7.2 (inc)
ibm aix From 7.3 (inc)
ibm powervm_vios From 4.1 (inc)
ibm aix 7.2
ibm aix 7.3
ibm powervm_vios 4.1

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-269 The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

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Executive Summary

This vulnerability in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 allows a local attacker to gain elevated privileges due to improper privilege management. This means an attacker with local access could exploit weak permission controls to escalate their privileges beyond intended limits.

Impact Analysis

If exploited, this vulnerability could allow an attacker to gain full control over the affected system, leading to unauthorized access, data theft, or system manipulation. Users of IBM AIX or PowerVM VIOS systems should apply patches immediately to mitigate risks.

Compliance Impact

The vulnerability allows local attackers to gain elevated privileges due to improper privilege management in IBM AIX and PowerVM VIOS. This could potentially lead to unauthorized access to sensitive data, which may impact compliance with standards like GDPR (data protection) and HIPAA (healthcare data privacy).

Mitigation Strategies

Apply IBM-provided patches or updates for AIX 7.2, 7.3, and PowerVM VIOS 4.1 to address improper privilege management. Monitor IBM security advisories for fixes and restrict local user access until patches are applied.

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