CVE-2026-6052: IBM DB2

High severity, CVSS 7.5. 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 12.1.4 is vulnerable to running out of memory when executing certain queries with MDC tables.

Affected products

• IBM DB2: from 11.5.0, up to and including 11.5.9; from 12.1.0, up to and including 12.1.4

Published 2026-05-27. Last modified 2026-06-17.