What is CVE-2026-2645?

CVE-2026-2645 is a high-severity vulnerability in Wolfssl, classified under CWE-358. CVSS score: 7.5/10. Published 2026-03-19.

How severe is CVE-2026-2645?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Wolfssl

CVE-2026-2645

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 aff…

EPSS: 0.000 (6.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Wolfssl — versions 0

Weakness classification (CWE)

CWE-358

References

facts@wolfssl.com (Patch, Issue Tracking)

Frequently asked questions

What is CVE-2026-2645?: CVE-2026-2645 is a high-severity vulnerability in Wolfssl, classified under CWE-358. CVSS score: 7.5/10. Published 2026-03-19.
How severe is CVE-2026-2645?: High severity. CVSS v3 base score is 7.5 out of 10.