CVE-2014-2899: Yassl Cyassl

Medium severity, CVSS 5.0. EPSS: 1.8% chance of exploitation in the next 30 days.

wolfSSL CyaSSL before 2.9.4 allows remote attackers to cause a denial of service (NULL pointer dereference) via (1) a request for the peer certificate when a certificate parsing failure occurs or (2) a client_key_exchange message when the ephemeral key is not found.

Affected products

• Yassl Cyassl: up to and including 2.9.0; version 0.2.0 only; version 0.3.0 only; version 0.4.0 only; version 0.5.0 only; version 0.5.5 only; …

Published 2014-04-22. Last modified 2026-06-17.