CVE-2026-17425

Received Received - Intake

Stack Buffer Overflow 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 cause a denial of service due to a stack buffer overflow.

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-2026-17425

EUVD

EUVD-2026-63736

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-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 it to cause a denial of service by sending specially crafted input that overflows a stack buffer.

Impact Analysis

The vulnerability allows a remote attacker to crash the affected system, leading to service disruption and potential downtime. Systems running IBM AIX or PowerVM VIOS are at risk of becoming unresponsive.

Compliance Impact

This vulnerability could lead to a denial of service, which may impact system availability. Compliance with standards like GDPR or HIPAA often requires maintaining system availability and protecting against disruptions. A denial of service could potentially violate availability requirements under these regulations.

Mitigation Strategies

Apply IBM-provided patches or updates for AIX 7.2, 7.3, and PowerVM VIOS 4.1 to address the stack buffer overflow issue. Monitor IBM security advisories for fixes and restrict remote access to affected systems until patched.

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