CVE-2026-18822: IBM AIX vulnerability

Q: Who can exploit this issue?

An attacker needs local access to an affected IBM AIX or IBM PowerVM VIOS system. The reported impact is denial of service through uncontrolled resource consumption while directory records are parsed.

Q: What is the expected impact of successful exploitation?

Successful exploitation can cause a denial of service by exhausting or consuming system resources during directory-record parsing.

Published Aug 15, 2026

Updated

AIX could allow a local attacker to cause a denial of service due to uncontrolled resource consumption when parsing directory records.

Affected Software

3 affected components

IBM AIX<=7.2

IBM AIX<=7.3

IBM PowerVM VIOS<=4.1

Event History

Aug 15, 2026

CVE Published

via IBM·12:00 AM

Data Sourced

via IBM·12:00 AM

DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

IBM-7283858

Frequently Asked Questions

Who can exploit this issue?

An attacker needs local access to an affected IBM AIX or IBM PowerVM VIOS system. The reported impact is denial of service through uncontrolled resource consumption while directory records are parsed.

What is the expected impact of successful exploitation?

Successful exploitation can cause a denial of service by exhausting or consuming system resources during directory-record parsing.