🛡️ CVE-2026-2645
🟠 CVSS 7.5 — High ✅ No Known Exploit CWE-358 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE CWE-358
Public Exploit ✅ No
Source NVD
Published 2026-03-19
Updated 2026-06-02
Modified 2026-04-29

Affected Packages

Software From version Fixed in
wolfssl — 5.8.4

References

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