Denial of Service Vulnerability in IBM AIX and PowerVM Products
CVE-2026-16817

7.5HIGH

Key Information:

Vendor

IBM
Status
Aix
Powervm ViOS
Vendor
CVE Published:
19 August 2026

What is CVE-2026-16817?

A denial of service vulnerability exists in IBM AIX versions 7.2 and 7.3, as well as in IBM PowerVM VIOS 4.1. This vulnerability could be exploited by a remote attacker, leading to a potential service disruption. The issue arises due to a NULL pointer dereference, which can cause system instability. Organizations using these affected products should be aware of this vulnerability and take appropriate measures to mitigate risks. For more information and patches, please refer to the official IBM advisory.

Affected Version(s)

AIX 7.2

AIX 7.3

PowerVM VIOS 4.1

References

https://www.ibm.com/support/pages/node/7283858
vendor-advisorypatch

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

CVE-2026-14970, CVE-2026-15061, CVE-2026-15078, CVE-2026-15065, CVE-2026-15068 were reported to IBM by Oneconsult AG (https://oneconsult.com/).
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