🛡️ CVE-2025-11934
🟢 CVSS 2.7 — Low ✅ No Known Exploit CWE-20 NVD
2.7
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Improper input validation in the TLS 1.3 CertificateVerify signature algorithm negotiation in wolfSSL 5.8.2 and earlier on multiple platforms allows for downgrading the signature algorithm used. For example when a client sends ECDSA P521 as the supported signature algorithm the server previously could respond as ECDSA P256 being the accepted signature algorithm and the connection would continue with using ECDSA P256, if the client supports ECDSA P256.

Details

Severity LOW
CVSS Score 2.7
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
CWE CWE-20
Public Exploit ✅ No
Source NVD
Published 2025-11-21
Updated 2026-06-02
Modified 2025-12-03

Affected Packages

Software From version Fixed in
wolfssl 5.8.2 5.8.4

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