CVE-2020-4363: IBM DB2

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 is vulnerable to a buffer overflow, caused by improper bounds checking which could allow a local attacker to execute arbitrary code on the system with root privileges. IBM X-Force ID: 178960.

Affected products

• IBM DB2: version 9.7.0.0 only; version 10.1.0.0 only; version 10.5.0.0 only; version 11.1.0.0 only; version 11.5.0.0 only

Published 2020-07-01. Last modified 2026-06-17.