CVE-2023-30431: IBM DB2

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 db2set is vulnerable to a buffer overflow, caused by improper bounds checking. An attacker could overflow the buffer and execute arbitrary code. IBM X-Force ID: 252184.

Affected products

• IBM DB2: version 10.5.0.11 only; version 11.1.4.7 only; version 11.5 only

Published 2023-07-10. Last modified 2026-06-17.