CVE-2021-29702: IBM DB2

High severity, CVSS 7.5. EPSS: 1.9% chance of exploitation in the next 30 days.

Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.1.4 and 11.5.5 is vulnerable to a denial of service as the server terminates abnormally when executing a specially crafted SELECT statement. IBM X-Force ID: 200658.

Affected products

• IBM DB2: from 11.1, up to and including 11.1.4; from 11.5, up to and including 11.5.5.0

Published 2021-06-16. Last modified 2026-06-17.