CVE-2026-16480: IBM DB2

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is affected by an improper authorization vulnerability in the certain command, allowing a non-privileged user to bypass authority checks and modify database catalog data.

Affected products

• IBM DB2: from 11.5, up to and including 11.5.9; from 12.1.0, up to and including 12.1.5

Published 2026-08-12. Last modified 2026-08-18.