CVE-2026-16888 Vulnerabilities in IBM AIX and PowerVM VIOS

Low 3.7 Published 19 Aug 2026 Updated 20 Aug 2026

A path traversal vulnerability in IBM AIX and PowerVM VIOS allows remote attackers to obtain sensitive information.

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-2026-16888?

CVE-2026-16888 is a low-severity path traversal vulnerability in Ibm Aix, published on 19 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 obtain sensitive information due to a path traversal vulnerability.

Weakness: CWE-22

Which versions are affected by CVE-2026-16888?

It affects 2 products.

Products include Ibm Aix, Ibm Vios.

How do I fix CVE-2026-16888?

No fix has been published for CVE-2026-16888 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-16888 being exploited?

There is no known exploitation of CVE-2026-16888 in the wild and no public exploit code.

All Ibm Aix vulnerabilities

Sources

Also known as GHSA-636f-3mph-97g9.