CVE-2026-19653
Received Received - Intake

Denial of Service 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 local attacker to cause a denial of service due to improper handling of memory page table configurations.

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Meta Information

Published
2026-08-19
Last Modified
2026-08-19
Generated
2026-08-19
AI Q&A
2026-08-19
EPSS Evaluated
N/A
NVD
CVE-2026-19653
EUVD
EUVD-2026-62661

Affected Vendors & Products

Showing 6 associated CPEs
Vendor Product Version / Range
ibm aix From 7.2 (inc)
ibm aix From 7.3 (inc)
ibm powervm_vios From 4.1 (inc)
ibm aix 7.2
ibm aix 7.3
ibm powervm_vios 4.1

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-400 The product does not properly control the allocation and maintenance of a limited resource.

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Executive Summary

This vulnerability in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 allows a local attacker to cause a denial of service by improperly handling memory page table configurations.

Impact Analysis

A local attacker could exploit this to disrupt system operations, leading to service unavailability or crashes on affected IBM AIX and PowerVM VIOS systems.

Compliance Impact

The provided CVE data does not specify direct impacts on compliance with standards like GDPR or HIPAA. The vulnerability involves a local denial of service due to improper memory handling, which could disrupt system availability but lacks explicit details on data protection or regulatory implications.

Mitigation Strategies

Apply IBM-provided patches or updates for IBM AIX 7.2, 7.3, and PowerVM VIOS 4.1 to address improper memory page table handling. Monitor IBM support pages for advisories and install fixes as soon as available.

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