CVE-2026-16829
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 remote attacker to cause a denial of service due to a NULL pointer dereference.

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Meta Information

Published
2026-08-19
Last Modified
2026-08-19
Generated
2026-08-20
AI Q&A
2026-08-19
EPSS Evaluated
N/A
NVD
CVE-2026-16829
EUVD
EUVD-2026-62717

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
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-476 The product dereferences a pointer that it expects to be valid but is NULL.

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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 a NULL pointer dereference. This means the system crashes or becomes unresponsive when processing certain network requests.

Impact Analysis

The impact includes system downtime and loss of availability for affected IBM AIX and PowerVM VIOS systems. Attackers could disrupt services by sending specially crafted network traffic to trigger the NULL pointer dereference.

Mitigation Strategies

Apply IBM-provided patches or updates for AIX 7.2, 7.3, and PowerVM VIOS 4.1 to address the NULL pointer dereference issue. Monitor IBM security advisories for fixes and implement network-level protections to limit remote access until patches are applied.

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