CVE-2023-38720: IBM DB2

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5 and 11.5 is vulnerable to denial of service with a specially crafted ALTER TABLE statement. IBM X-Force ID: 261616.

Affected products

• IBM DB2: from 11.5, before 11.5.8 (fixed in 11.5.8); version 11.1.4 only

Published 2023-10-16. Last modified 2026-06-17.