CVE-2026-87958: IBM DB2

High severity, CVSS 8.1. EPSS: 0.4% 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 vulnerable to a denial of service where a specific functionality on a Db2 server can be disabled by a privileged user under certain conditions.

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 2026-09-10. Last modified 2026-09-14.