CVE-2026-19442 Vulnerabilities in IBM AIX and PowerVM VIOS

High 8.2 Published 20 Aug 2026 Updated 22 Aug 2026

A pointer validation flaw in the AIX vSCSI driver allows attackers to cause denial of service or escalate privileges to compromise the kernel.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-19442?

CVE-2026-19442 is a high-severity vulnerability in Ibm Aix, published on 20 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 has a pointer validation flaw exists in the AIX Virtual SCSI (vSCSI) initiator driver. Successful exploitation may result in denial of service, privilege escalation, or full compromise of the client LPAR kernel.

Weakness: CWE-822

Which versions are affected by CVE-2026-19442?

It affects 2 products.

Products include Ibm Aix, Ibm Vios.

How do I fix CVE-2026-19442?

No fix has been published for CVE-2026-19442 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-19442 being exploited?

There is no known exploitation of CVE-2026-19442 in the wild and no public exploit code.

All Ibm Aix vulnerabilities

Sources

Also known as GHSA-mrg6-q394-8jmx.