{"id":"EUVD-2025-199640","revision":"79c4503b9bde4103a82e9c4e8e19ed0c","records":[{"revision":"79c4503b9bde4103a82e9c4e8e19ed0c","observedAt":"2026-10-30T00:58:43.006+00:00","statement":{"source":"euvd","id":"EUVD-2025-199640","aliases":["CVE-2025-66017","GHSA-8frv-q972-9rq5"],"title":"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, presi…","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.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","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,"severity":null}],"references":["https://github.com/LFDT-Lockness/cggmp21/security/advisories/GHSA-8frv-q972-9rq5","https://www.dfns.co/article/cggmp21-vulnerabilities-patched-and-explained"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-199640","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Nov 25, 2025, 7:59:07 PM","dateUpdated":"Nov 25, 2025, 8:48:35 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2025-199640","identifiers":["EUVD-2025-199640","CVE-2025-66017","GHSA-8frv-q972-9rq5"]},"retained":false,"historicalAffected":[]}],"coverage":[]}