Stack Buffer Overflow in IBM AIX and PowerVM Products
CVE-2026-17157

9.8CRITICAL

Key Information:

Vendor

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

What is CVE-2026-17157?

A vulnerability has been identified in IBM AIX versions 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1, which could potentially allow a remote attacker to execute arbitrary code on the affected systems. This vulnerability arises from a stack buffer overflow, highlighting the importance for users to apply necessary patches to mitigate associated risks. The vulnerability emphasizes the need for robust security measures in enterprise environments to protect sensitive data and system integrity.

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/).
.