cvedb.io
CVE-2026-2645
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-03-19T18:16:22.043 · Last modified 2026-06-17T10:31:27.377

Summary

In wolfSSL 5.8.2 and earlier, a logic flaw existed in the TLS 1.2 server state machine implementation. The server could incorrectly accept the CertificateVerify message before the ClientKeyExchange message had been received. This issue affects wolfSSL before 5.8.4 (wolfSSL 5.8.2 and earlier is vulnerable, 5.8.4 is not vulnerable). In 5.8.4 wolfSSL would detect the issue later in the handshake. 5.9.0 was further hardened to catch the issue earlier in the handshake.

Affected products

wolfssl — wolfssl

Does this affect you?

Add your gear to cvedb and we'll alert you only when wolfssl ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.