Integer Overflow Vulnerability in IBM AIX and PowerVM
CVE-2026-16890

3.6LOW

Key Information:

Vendor

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

What is CVE-2026-16890?

The integer overflow vulnerability in IBM AIX versions 7.2, 7.3, and IBM PowerVM VIOS 4.1 poses a significant risk to local attackers. This flaw could enable them to exploit the system, potentially leading to sensitive information disclosure or causing a denial of service. Users and administrators should be aware of this vulnerability and implement the necessary patches to protect their systems against potential exploitation.

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:
3.6
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
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/).
.