CVE-2020-4739: IBM DB2

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

IBM DB2 Accessories Suite for Linux, UNIX, and Windows, DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow a local authenticated attacker to execute arbitrary code on the system, caused by DLL search order hijacking vulnerability in Microsoft Windows client. By placing a specially crafted file in a compromised folder, an attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 188149.

Affected products

• IBM DB2: from 11.5, before 11.5.5.0 (fixed in 11.5.5.0); version 9.7.0.0 only; version 10.1.0.0 only; version 10.5.0.0 only; version 11.1.0.0 only

Published 2020-11-20. Last modified 2026-06-17.