CVE-2026-16821

7.8 highEPSS 0.1%

High (7.8) in ibm. EPSS 0.1% chance of exploitation in the next 30 days.

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to gain elevated privileges due to a format string vulnerability.

Severity

7.8 high

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-31)
CWE: CWE-134
Published: 2026-08-28
Modified: 2026-09-02
Record from: the NVD, synced 2026-10-19