{"answers":{"affected":"6 open source packages ship an affected version, including cggmp21 and cggmp24.","exploited":"There is no known exploitation of CVE-2025-66016 in the wild and no public exploit code.","fix":"Upgrade cggmp21 to 0.6.3 or later.","what":"CVE-2025-66016 is a critical vulnerability in LFDT-Lockness cggmp21, published on 25 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-66016 and fix it if it is affected.\n\nWhat it is: CVE-2025-66016 is a critical vulnerability in LFDT-Lockness cggmp21, published on 25 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-66016 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- cggmp21 (crates.io): affected all versions; fixed in 0.6.3\n- cggmp21 (crates.io): affected all versions; fixed in 0.6.3\n- cggmp21 (crates.io): affected from 0.0.0-0; fixed in 0.6.3\n- cggmp24 (crates.io): affected all versions; fixed in 0.7.0-alpha.2\n- cggmp24 (crates.io): affected all versions; fixed in 0.7.0-alpha.2\n- cggmp24 (crates.io): affected from 0.0.0-0; fixed in 0.7.0-alpha.2\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2025-66016/ (Markdown: https://insights.sbomify.com/CVE-2025-66016/index.md)","id":"CVE-2025-66016","markdown":"https://insights.sbomify.com/CVE-2025-66016/index.md","name":"CVE-2025-66016","record":{"aliases":["GHSA-m95p-425x-x889","RUSTSEC-2025-0129","RUSTSEC-2025-0130"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Rust ECDSA TSS library","requires_auth":"none","summary":"A missing check in the ZK proof allows a malicious signer to reconstruct the full private key in the CGGMP24 ECDSA TSS protocol.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"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","version":"4.0"},"cwes":[{"id":"CWE-345","name":"Insufficient Verification of Data Authenticity"}],"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. 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.","ecosystems":["crates.io"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"CGGMP24 is missing a check in the ZK proof used in CGGMP21","id":"CVE-2025-66016","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"other","year":"2025"},"n_packages":6,"n_references":2,"next":{"headline":"CGGMP21 presignatures can be used in the way that significantly reduces security","id":"CVE-2025-66017"},"packages":[{"ecosystem":"crates.io","fixed":["0.6.3"],"introduced":["0"],"last_affected":[],"package":"cggmp21","purl":null,"source":"GHSA-m95p-425x-x889"},{"ecosystem":"crates.io","fixed":["0.6.3"],"introduced":["0"],"last_affected":[],"package":"cggmp21","purl":"pkg:cargo/cggmp21","source":"GHSA-m95p-425x-x889"},{"ecosystem":"crates.io","fixed":["0.6.3"],"introduced":["0.0.0-0"],"last_affected":[],"package":"cggmp21","purl":"pkg:cargo/cggmp21","source":"RUSTSEC-2025-0129"},{"ecosystem":"crates.io","fixed":["0.7.0-alpha.2"],"introduced":["0"],"last_affected":[],"package":"cggmp24","purl":null,"source":"GHSA-m95p-425x-x889"},{"ecosystem":"crates.io","fixed":["0.7.0-alpha.2"],"introduced":["0"],"last_affected":[],"package":"cggmp24","purl":"pkg:cargo/cggmp24","source":"GHSA-m95p-425x-x889"},{"ecosystem":"crates.io","fixed":["0.7.0-alpha.2"],"introduced":["0.0.0-0"],"last_affected":[],"package":"cggmp24","purl":"pkg:cargo/cggmp24","source":"RUSTSEC-2025-0130"}],"prev":{"headline":"Lack of Authentication in the InputManager D-Bus interface","id":"CVE-2025-66005"},"products":["cggmp21"],"published":"2025-11-25","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"open","licence":"CC0 1.0","name":"RustSec","prefix":"RUSTSEC"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-11-25","vendors":["LFDT-Lockness"]},"summary":"A missing check in the ZK proof allows a malicious signer to reconstruct the full private key in the CGGMP24 ECDSA TSS protocol.","url":"https://insights.sbomify.com/CVE-2025-66016/"}