CVE-2025-66016

CGGMP24 is a state-of-art ECDSA TSS protocol that supports 1-round signing (requires 3 preprocessing rounds), identifiable abort, and a key refresh protocol. Prior to version 0.6.3, there is a missing check in the ZK proof that enables an attack in which single malicious signer can reconstruct full private key. This issue has been patched in version 0.6.3, for full mitigation it is recommended to upgrade to cggmp24 version 0.7.0-alpha.2 as it contains more security checks.

CVSS

No CVSS.

References

Link	Resource
https://github.com/LFDT-Lockness/cggmp21/security/advisories/GHSA-m95p-425x-x889
https://www.dfns.co/article/cggmp21-vulnerabilities-patched-and-explained

Configurations

No configuration.

History

18 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) CGGMP24 es un protocolo ECDSA TSS de última generación que soporta firma de 1 ronda (requiere 3 rondas de preprocesamiento), aborto identificable y un protocolo de refresco de clave. Versiones anteriores a la versión 0.6.3, existe una verificación faltante en la prueba ZK que permite un ataque en el que un único firmante malicioso puede reconstruir la clave privada completa. Este problema ha sido parcheado en la versión 0.6.3; para una mitigación completa, se recomienda actualizar a la versión cggmp24 0.7.0-alpha.2, ya que contiene más comprobaciones de seguridad.

Information

Published : 2025-11-25 20:16

Updated : 2026-10-18 20:10

NVD link : CVE-2025-66016

Mitre link : CVE-2025-66016

CVE.ORG link : CVE-2025-66016

JSON object : View

Products Affected

No product.

CWE

CWE-345

Insufficient Verification of Data Authenticity

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