CVE-2026-17170

Received Received - Intake

Denial of Service 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 improper validation of an allocation size.

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-2026-17170

EUVD

EUVD-2026-63726

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-770	The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Attack-Flow Graph

Executive Summary

This vulnerability in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 allows a remote attacker to cause a denial of service by exploiting improper validation of an allocation size. This means the system fails to correctly check memory or resource allocation requests, potentially leading to system crashes or unresponsiveness.

Impact Analysis

If exploited, this vulnerability could cause your IBM AIX or PowerVM VIOS system to become unavailable, disrupting services and operations. It may lead to downtime, loss of productivity, and potential data access issues during the outage.

Compliance Impact

This vulnerability could impact compliance by causing service disruptions that lead to data unavailability. For GDPR, it may affect data access rights. For HIPAA, it could disrupt access to protected health information, potentially violating availability requirements.

Mitigation Strategies

Apply IBM-provided patches or updates for AIX 7.2, 7.3, and PowerVM VIOS 4.1 to address the improper allocation size validation issue.

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