CVE-2003-1301: Sun JRE

Medium severity, CVSS 5.0. EPSS: 2.5% chance of exploitation in the next 30 days.

Sun Java Runtime Environment (JRE) 1.x before 1.4.2_11 and 1.5.x before 1.5.0_06, and as used in multiple web browsers, allows remote attackers to cause a denial of service (application crash) via deeply nested object arrays, which are not properly handled by the garbage collector and trigger invalid memory accesses.

Affected products

• Sun JRE: version 1.4.2 only; version 1.4.2_1 only; version 1.4.2_2 only; version 1.4.2_3 only; version 1.4.2_4 only; version 1.4.2_5 only; …

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