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Low severity2.7NVD Advisory· Published Nov 21, 2025· Updated Oct 19, 2026

CVE-2025-11934

CVE-2025-11934

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • WolfSSL/Wolfsslv53 versions
    3.12.0+ 2 more
    • (no CPE)range: 3.12.0
    • (no CPE)range: <=5.8.2
    • cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*range: >=5.8.2,<5.8.4

Patches

Vulnerability mechanics

References

1

News mentions

0

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