CVE-2003-1123: Sun JDK

High severity, CVSS 7.5. EPSS: 11.1% chance of exploitation in the next 30 days.

Sun Java Runtime Environment (JRE) and SDK 1.4.0_01 and earlier allows untrusted applets to access certain information within trusted applets, which allows attackers to bypass the restrictions of the Java security model.

Affected products

• Sun JDK: version 1.2.2 only; version 1.2.2_10 only; version 1.2.2_11 only; version 1.2.2_12 only; version 1.3 only; version 1.3.0_02 only; …
• Sun JRE: version 1.2.2 only; version 1.2.2_003 only; version 1.2.2_011 only; version 1.2.2_012 only; version 1.3.0 only; version 1.3.1 only; …

Published 2003-12-31. Last modified 2026-06-16.