Format String Vulnerability in IBM AIX and PowerVM Products
CVE-2026-17136

9.8CRITICAL

Key Information:

Vendor

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

What is CVE-2026-17136?

A format string vulnerability has been identified in IBM AIX versions 7.2 and 7.3, as well as in IBM PowerVM VIOS 4.1. This flaw could allow a remote attacker to exploit the system, potentially leading to arbitrary code execution. Proper patching and monitoring are essential to mitigate this risk and safeguard critical infrastructure.

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/).
.