{"cve":"CVE-2025-66017","nvd":{"published":"2025-11-25T20:16:00.850","modified":"2026-10-18T20:10:00.110","status":"Deferred","description":"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. In versions 0.6.3 and prior of cggmp21 and version 0.7.0-alpha.1 of cggmp24, presignatures can be used in the way that significantly reduces security. cggmp24 version 0.7.0-alpha.2 release contains API changes that make it impossible to use presignatures in contexts in which it reduces security.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","score":8.2},"cvss_v3":null,"cwes":["CWE-327"],"references":["https://github.com/LFDT-Lockness/cggmp21/security/advisories/GHSA-8frv-q972-9rq5","https://www.dfns.co/article/cggmp21-vulnerabilities-patched-and-explained"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:16:02.354564667+00:00"},"epss":{"cve":"CVE-2025-66017","score":0.00209,"percentile":0.10896,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-8frv-q972-9rq5","url":"https://osv.dev/vulnerability/GHSA-8frv-q972-9rq5","summary":"cggmp24 and cggmp21 are vulnerable to signature forgery through altered presignatures","modified":"2025-11-27T09:16:25.996514Z","packages":[{"ecosystem":"crates.io","name":"cggmp21","purl":"pkg:cargo/cggmp21","ranges":["<=0.6.3"],"fixed":[]},{"ecosystem":"crates.io","name":"cggmp24","purl":"pkg:cargo/cggmp24","ranges":["<0.7.0-alpha.2"],"fixed":["0.7.0-alpha.2"]}]},{"id":"RUSTSEC-2025-0127","url":"https://osv.dev/vulnerability/RUSTSEC-2025-0127","summary":"CGGMP21 presignatures can be used in the way that significantly reduces security","modified":"2025-11-26T06:15:23.517805Z","packages":[{"ecosystem":"crates.io","name":"cggmp21","purl":"pkg:cargo/cggmp21","ranges":[">=0.0.0-0"],"fixed":[]}]},{"id":"RUSTSEC-2025-0128","url":"https://osv.dev/vulnerability/RUSTSEC-2025-0128","summary":"CGGMP21 presignatures can be used in the way that significantly reduces security","modified":"2025-11-26T06:15:23.632560Z","packages":[{"ecosystem":"crates.io","name":"cggmp24","purl":"pkg:cargo/cggmp24","ranges":[">=0.0.0-0 <0.7.0-alpha.2"],"fixed":["0.7.0-alpha.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}