CVEvulnerability

CVE-2025-11934

2.1 LOW Published 2025-11-21 Modified 2026-10-19 Official page ↗
Status
Analyzed
Published
2025-11-21
Last modified
2026-10-19
Assigner
[email protected]
CVSS 4.0 ([email protected])
2.1 LOW — CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 ([email protected])
2.7 LOW — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Weaknesses
CWE-20

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.

Affected configurations

• wolfssl wolfssl (>= 5.8.2 < 5.8.4)

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References