Local Privilege Escalation in IBM AIX and PowerVM
CVE-2026-19449

8.8HIGH

Key Information:

Vendor

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

What is CVE-2026-19449?

A vulnerability exists in the cmdnim command of IBM AIX versions 7.2, 7.3 and IBM PowerVM VIOS 4.1. This issue may permit an unprivileged local user to execute malicious payloads with root privileges, posing a significant security risk. Users are advised to apply patches provided by IBM to mitigate this risk and secure their 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:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

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/).
.