CVE-2026-16913

Received Received - Intake

Stack Buffer Overflow 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 due to a stack buffer overflow.

CVSS Scores

EPSS Scores

Probability:
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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-2026-16913

EUVD

EUVD-2026-62832

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	aix	7.2
ibm	aix	7.3
ibm	powervm_vios	4.1
ibm	aix	From 7.2 (inc)
ibm	aix	From 7.3 (inc)
ibm	powervm_vios	From 4.1 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-787	The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is a stack buffer overflow in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. A remote attacker could exploit this to execute arbitrary code on the affected system.

Impact Analysis

An attacker could gain full control of the system, allowing them to install malware, steal data, or disrupt operations. This could lead to unauthorized access, data breaches, or system crashes.

Compliance Impact

This vulnerability could lead to data breaches, which may violate GDPR, HIPAA, or other regulations. Organizations could face fines, legal penalties, and reputational damage due to non-compliance.

Mitigation Strategies

Apply IBM-provided patches or updates for AIX 7.2, 7.3, and PowerVM VIOS 4.1 immediately. Isolate affected systems from untrusted networks until patched. Monitor IBM security advisories for updates and follow their recommended mitigation steps.

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