CVE-2026-16831: IBM AIX vulnerability

Q: Which environments should be prioritized for review?

Systems running IBM AIX or IBM PowerVM VIOS should be reviewed, as both products are identified as affected.

Q: What access or prerequisites does an attacker need?

The available information identifies the attacker as remote, but it does not state whether authentication, specific privileges, or a particular service exposure is required.

Q: Are affected versions, configurations, or temporary mitigations identified?

No affected version range, configuration conditions, or workaround is provided in the available data.

Published Aug 15, 2026

Updated

AIX could allow a remote attacker to cause a denial of service due to uncontrolled resource consumption.

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

Which environments should be prioritized for review?

Systems running IBM AIX or IBM PowerVM VIOS should be reviewed, as both products are identified as affected.

What access or prerequisites does an attacker need?

The available information identifies the attacker as remote, but it does not state whether authentication, specific privileges, or a particular service exposure is required.

Are affected versions, configurations, or temporary mitigations identified?