What is CVE-2026-16869?

CVE-2026-16869 is a high-severity vulnerability in IBM Aix, classified under Untrusted Search Path. CVSS score: 7.8/10. Published 2026-08-19.

How severe is CVE-2026-16869?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in IBM Aix

CVE-2026-16869

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to execute arbitrary code due to improperly scrubbed environment variables.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ibm Aix — versions 7.2, 7.3
Ibm Powervm Vios — versions 4.1
Ibm Vios

Weakness classification (CWE)

CWE-426 — Untrusted Search Path

References

psirt@us.ibm.com (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-16869?: CVE-2026-16869 is a high-severity vulnerability in IBM Aix, classified under Untrusted Search Path. CVSS score: 7.8/10. Published 2026-08-19.
How severe is CVE-2026-16869?: High severity. CVSS v3 base score is 7.8 out of 10.