CVE-2014-2897: wolfSSL

Critical severity, CVSS 9.8. EPSS: 2.8% chance of exploitation in the next 30 days.

The SSL 3 HMAC functionality in wolfSSL CyaSSL 2.5.0 before 2.9.4 does not check the padding length when verification fails, which allows remote attackers to have unspecified impact via a crafted HMAC, which triggers an out-of-bounds read.

Affected products

• wolfSSL wolfSSL: from 2.5.0, before 2.9.4 (fixed in 2.9.4)

Published 2020-01-28. Last modified 2026-06-17.