Denial of Service Vulnerability in IBM AIX and PowerVM
CVE-2026-16818

7.5HIGH

Key Information:

Vendor

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

What is CVE-2026-16818?

IBM AIX versions 7.2 and 7.3, along with IBM PowerVM VIOS 4.1, are susceptible to a denial of service vulnerability. This flaw permits remote attackers to exploit uncontrolled resource consumption, potentially leading to service disruption. Organizations using these products should review security advisories and implement necessary patches to mitigate these risks, ensuring system integrity and availability.

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/).
.