CVE-2020-4701: 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) 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.

Affected products

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

Published 2020-11-19. Last modified 2026-06-17.