CVE-2025-66016 (GCVE-0-2025-66016)
Vulnerability from cvelistv5
Published
2025-11-25 19:48
Modified
2025-11-25 20:57
Severity ?
9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-345 - Insufficient Verification of Data Authenticity
Summary
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.
References
Impacted products
Vendor Product Version
LFDT-Lockness cggmp21 Version: < 0.6.3
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