Remote Code Execution Vulnerability in IBM AIX and PowerVM
CVE-2026-16913

9.8CRITICAL

Key Information:

Vendor

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

What is CVE-2026-16913?

A vulnerability exists in IBM AIX versions 7.2 and 7.3, along with IBM PowerVM VIOS 4.1, that may permit remote adversaries to execute arbitrary code via a stack buffer overflow. This weakness can be exploited if an attacker sends specially crafted data to the applications running on the affected systems, leading to potential unauthorized access and control over sensitive systems.

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:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
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/).
.