Buffer Overflow in IBM AIX and PowerVM Products
CVE-2026-17422

9.3CRITICAL

Key Information:

Vendor

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

What is CVE-2026-17422?

A vulnerability exists in IBM AIX versions 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1, allowing local attackers to exploit a buffer overflow. This security risk enables unauthorized code execution, raising potential concerns for system integrity and data protection. Prompt patching and security measures are advised to mitigate these 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:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
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/).
.