CVE-2009-4439: IBM DB2

Medium severity, CVSS 4.0. EPSS: 2% chance of exploitation in the next 30 days.

Unspecified vulnerability in the Query Compiler, Rewrite, and Optimizer component in IBM DB2 9.5 before FP5 allows remote authenticated users to cause a denial of service (instance crash) by compiling a SQL query.

Affected products

• IBM DB2: version 9.5 only

Published 2009-12-28. Last modified 2026-06-16.