CVE-2009-3864: Microsoft Windows

High severity, CVSS 7.5. EPSS: 22.5% chance of exploitation in the next 30 days.

The Java Update functionality in Java Runtime Environment (JRE) in Sun Java SE in JDK and JRE 5.0 before Update 22 and JDK and JRE 6 before Update 17, when a non-English version of Windows is used, does not retrieve available new JRE versions, which allows remote attackers to leverage vulnerabilities in older releases of this software, aka Bug Id 6869694.

Affected products

• Microsoft Windows: any version
• Sun JDK: version 1.5.0 only; version 1.6.0 only
• Sun JRE: version 1.5.0 only; version 1.6.0 only

Published 2009-11-05. Last modified 2026-06-16.