CVE-2026-16991

Published Aug 20, 2026

Last updated 4 days ago

CVSS high 7.8

Overview

Description
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to gain elevated privileges due to improper handling of symbolic links.
Source
psirt@us.ibm.com
NVD status
Received

Risk scores

CVSS 3.1

Type
Primary
Base score
7.8
Impact score
5.9
Exploitability score
1.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity
HIGH

Weaknesses

psirt@us.ibm.com
CWE-269

Social media

Hype score
Not currently trending

References

Sources include official advisories and independent security research.