CVE-2026-19653: IBM AIX vulnerability

Q: Who can exploit this issue?

An attacker needs local access to an affected PowerVM VIOS environment. The provided information does not indicate that remote exploitation is possible.

Q: What impact can exploitation have?

Successful exploitation can cause a denial of service through improper handling of memory page table configurations. No information is provided about confidentiality or integrity impact.

Published Aug 15, 2026

Updated

PowerVM VIOS could allow a local attacker to cause a denial of service due to improper handling of memory page table configurations.

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 PowerVM VIOS environment. The provided information does not indicate that remote exploitation is possible.

What impact can exploitation have?

Successful exploitation can cause a denial of service through improper handling of memory page table configurations. No information is provided about confidentiality or integrity impact.