Denial of Service Vulnerability in IBM AIX and PowerVM
CVE-2026-17159

7.5HIGH

Key Information:

Vendor

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

What is CVE-2026-17159?

The vulnerability in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 is caused by an integer overflow that can be exploited by remote attackers. This could lead to a denial of service, disrupting the availability of the affected systems. Users are encouraged to review the vendor's advisory for patching options and further risk mitigation.

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:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
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/).
.