CVE-2022-42961: wolfSSL

Medium severity, CVSS 5.3. EPSS: 0.6% chance of exploitation in the next 30 days.

An issue was discovered in wolfSSL before 5.5.0. A fault injection attack on RAM via Rowhammer leads to ECDSA key disclosure. Users performing signing operations with private ECC keys, such as in server-side TLS connections, might leak faulty ECC signatures. These signatures can be processed via an advanced technique for ECDSA key recovery. (In 5.5.0 and later, WOLFSSL_CHECK_SIG_FAULTS can be used to address the vulnerability.)

Affected products

• wolfSSL wolfSSL: before 5.5.0 (fixed in 5.5.0)

Published 2022-10-15. Last modified 2026-06-17.