CVE-2026-17423

Received Received - Intake

Out-of-Bounds Read 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 remote attacker to obtain sensitive information and cause a denial of service due to an out-of-bounds read.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-20

Last Modified

2026-08-20

Generated

2026-08-21

AI Q&A

2026-08-21

EPSS Evaluated

N/A

NVD

CVE-2026-17423

EUVD

EUVD-2026-63734

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	aix	7.2
ibm	aix	7.3
ibm	powervm_vios	4.1

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is an out-of-bounds read issue in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. It allows a remote attacker to access sensitive information and cause a denial of service by exploiting memory access beyond valid limits.

Impact Analysis

The vulnerability may lead to unauthorized access to sensitive data and system crashes. Attackers could exploit it to steal information or disrupt services on affected IBM AIX and PowerVM VIOS systems.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive information, which may violate data protection requirements under GDPR and HIPAA. The out-of-bounds read may expose personal or health data, potentially resulting in non-compliance with these regulations.

Mitigation Strategies

Apply IBM AIX and PowerVM VIOS security patches or updates as soon as they become available to address the out-of-bounds read issue.

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