CVE-2005-4839: Claymore Systems Inc Puretls

Medium severity, CVSS 5.0. EPSS: 0.5% chance of exploitation in the next 30 days.

PureTLS before 0.9b5 does not clear optional Extensions and Algorithm.Parameters values before parsing, which might trigger an information leak of values from earlier certificates.

Affected products

• Claymore Systems Inc Puretls: up to and including 0.9b4

Published 2005-12-31. Last modified 2026-06-16.