CVE-2026-16903
Received Received - Intake

Remote Code Execution in IBM AIX and PowerVM VIOS

Publication date: 2026-08-19

Last updated on: 2026-08-19

Assigner: IBM Corporation

Description
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code or cause a denial of service due to an out-of-bounds write.

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Meta Information

Published
2026-08-19
Last Modified
2026-08-19
Generated
2026-08-20
AI Q&A
2026-08-20
EPSS Evaluated
N/A
NVD
CVE-2026-16903
EUVD
EUVD-2026-62829

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
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-787 The product writes data past the end, or before the beginning, of the intended buffer.

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Executive Summary

This vulnerability in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 allows a remote attacker to execute arbitrary code or cause a denial of service through an out-of-bounds write issue.

Impact Analysis

An attacker could exploit this to run malicious code on your system or crash it, potentially leading to data loss, unauthorized access, or service disruption.

Mitigation Strategies

Apply the latest IBM AIX or PowerVM VIOS security patches immediately. Isolate affected systems from untrusted networks. Monitor IBM PSIRT advisories for updates.

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