Denial of Service Risk in IBM AIX and PowerVM Products
CVE-2026-18822

4.4MEDIUM

Key Information:

Vendor

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

What is CVE-2026-18822?

A vulnerability in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1 allows local attackers to exploit uncontrolled resource consumption during the parsing of directory records. This could lead to a denial of service, impacting system availability and performance. Organizations utilizing these products should implement patches provided by IBM to mitigate this risk. For further details, refer to the vendor advisory.

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:
4.4
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
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/).
.