Denial of Service Vulnerability in IBM AIX and PowerVM
CVE-2026-16690

7.5HIGH

Key Information:

Vendor

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

What is CVE-2026-16690?

A vulnerability present in IBM AIX versions 7.2 and 7.3 and IBM PowerVM VIOS 4.1 allows remote attackers to exploit uncontrolled resource consumption, potentially leading to a denial of service condition. This flaw could enable an attacker to exhaust system resources, impacting the availability and performance of the affected systems. It is crucial for users of these products to apply the recommended patches to mitigate the associated risks.

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/).
.