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.

INFO

Published Date :

2025-11-21T22:12:37.868Z

Last Modified :

2025-11-21T22:12:37.868Z

Source :

wolfSSL
AFFECTED PRODUCTS

The following products are affected by CVE-2025-11934 vulnerability.

No data.

REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-11934.

URL Resource
https://github.com/wolfSSL/wolfssl cve-icon cve-icon
https://github.com/wolfSSL/wolfssl/pull/9113 cve-icon cve-icon
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