CVE-2026-17159

Received Received - Intake

Integer 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 an integer 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-2026-17159

EUVD

EUVD-2026-63721

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-190	The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Attack-Flow Graph

Executive Summary

This vulnerability is an integer overflow issue in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. It allows a remote attacker to cause a denial of service by exploiting this flaw.

Impact Analysis

The vulnerability can lead to system crashes or unresponsiveness, disrupting services and operations dependent on the affected IBM AIX or PowerVM VIOS systems.

Compliance Impact

This vulnerability could lead to a denial of service, which may impact the availability of systems processing personal data. For GDPR, this could affect the right to access or rectify data if services are disrupted. For HIPAA, it may compromise the availability of protected health information systems.

Mitigation Strategies

Apply IBM-provided patches or updates for AIX 7.2, 7.3, and PowerVM VIOS 4.1 to address the integer overflow issue. Monitor IBM security advisories for fixes and follow their recommended mitigation steps.

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