CVE-2026-16924 Vulnerabilities in IBM AIX and PowerVM VIOS

High 7.5 Published 20 Aug 2026 Updated 20 Aug 2026

A remote attacker can cause a denial of service in IBM AIX and PowerVM VIOS due to an improper memory offset calculation during IPsec decapsulation.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-16924?

CVE-2026-16924 is a high-severity vulnerability in Ibm Aix, published on 20 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to an improper calculation of a memory offset during IPsec decapsulation.

Weakness: CWE-131, CWE-191

Which versions are affected by CVE-2026-16924?

It affects 2 products.

Products include Ibm Aix, Ibm Vios.

How do I fix CVE-2026-16924?

No fix has been published for CVE-2026-16924 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-16924 being exploited?

There is no known exploitation of CVE-2026-16924 in the wild and no public exploit code.

All Ibm Aix vulnerabilities

Sources

Also known as GHSA-3r89-cmcr-wvp2.