Vulnerability in IBM Aix
CVE-2026-16827
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 the use of an uninitialized stack pointer.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Ibm Aix — versions 7.2, 7.3
- Ibm Powervm Vios — versions 4.1
Weakness classification (CWE)
References
- psirt@us.ibm.com (vendor-advisory, patch)
Frequently asked questions
- What is CVE-2026-16827?
- CVE-2026-16827 is a medium-severity vulnerability in IBM Aix, classified under Use of Uninitialized Resource. CVSS score: 5.9/10. Published 2026-08-19.
- How severe is CVE-2026-16827?
- Medium severity. CVSS v3 base score is 5.9 out of 10.