CVE-2002-2102: Jcraft Jzlib

Medium severity, CVSS 5.0. EPSS: 1.9% chance of exploitation in the next 30 days.

InfBlocks.java in JCraft JZlib before 0.0.7 allow remote attackers to cause a denial of service (NullPointerException) via an invalid block of deflated data.

Affected products

• Jcraft Jzlib: version 0.0.1 only; version 0.0.2 only; version 0.0.3 only; version 0.0.4 only; version 0.0.5 only; version 0.0.6 only

Published 2002-12-31. Last modified 2026-06-16.