CVE-2019-4523: IBM DB2 High Performance Unload Load

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

IBM DB2 High Performance Unload load for LUW 6.1 and 6.5 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: 165481.

Affected products

• IBM DB2 High Performance Unload Load: version 6.1 only; version 6.5 only

Published 2019-10-22. Last modified 2026-06-17.