CVE-2025-36136: IBM DB2

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.3 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow a local user to cause a denial of service due to the database monitor script incorrectly detecting that the instance is still starting under specific conditions.

Affected products

• IBM DB2: from 11.5.0, up to and including 11.5.9; from 12.1.0, up to and including 12.1.3

Published 2025-11-07. Last modified 2026-10-07.