CVE-2004-2393: Sun Jsse

High severity, CVSS 7.5. EPSS: 2.1% chance of exploitation in the next 30 days.

Java Secure Socket Extension (JSSE) 1.0.3 through 1.0.3_2 does not properly validate the certificate chain of a client or server, which allows remote attackers to falsely authenticate peers for SSL/TLS.

Affected products

• Sun Jsse: version 1.0.3 only; version 1.0.3_01 only; version 1.0.3_02 only

Published 2004-12-31. Last modified 2026-06-16.