CVE-2026-16997 Vulnerabilities in IBM AIX and PowerVM VIOS

High 7.8 Published Updated

A local attacker can execute arbitrary commands and escalate privileges on IBM AIX and PowerVM VIOS due to improper privilege management.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-16997?

CVE-2026-16997 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, and only if a user opens a file or follows a link.

Official description

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to execute arbitrary commands due to improper privilege management.

Weakness: CWE-269

Which versions are affected by CVE-2026-16997?

It affects 2 products.

Products include Ibm Aix, Ibm Vios.

How do I fix CVE-2026-16997?

No fix has been published for CVE-2026-16997 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-16997 being exploited?

There is no known exploitation of CVE-2026-16997 in the wild and no public exploit code.

All Ibm Aix vulnerabilities

Sources

Also known as GHSA-hv56-c358-xgh8.

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