CVE-2021-29703: IBM DB2

High severity, CVSS 7.5. EPSS: 1.7% chance of exploitation in the next 30 days.

Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) is vulnerable to a denial of service as the server terminates abnormally when executing a specially crafted SELECT statement. IBM X-Force ID: 200659.

Affected products

• IBM DB2: version 9.7 only; version 10.1 only; version 10.5 only; version 11.1 only; version 11.5 only

Published 2021-06-24. Last modified 2026-06-17.