{"id":"EUVD-2026-2731","revision":"b8f2332a0de14521a1fa9f76ad0f320f","records":[{"revision":"b8f2332a0de14521a1fa9f76ad0f320f","observedAt":"2026-11-01T03:08:36.436+00:00","statement":{"source":"euvd","id":"EUVD-2026-2731","aliases":["CVE-2026-23519","GHSA-2gqc-6j2q-83qp"],"title":"RustCrypto CMOV provides conditional move CPU intrinsics which are guaranteed on major platforms to execute in constant-time and not be rewritten as branches by the compiler. Prior to 0.4.4, the thumbv6m-none-eabi (Cortex M0, M0+ and M1) co…","description":"RustCrypto CMOV provides conditional move CPU intrinsics which are guaranteed on major platforms to execute in constant-time and not be rewritten as branches by the compiler. Prior to 0.4.4, the thumbv6m-none-eabi (Cortex M0, M0+ and M1) compiler emits non-constant time assembly when using cmovnz (portable version). This vulnerability is fixed in 0.4.4.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","score":8.9,"severity":null}],"references":["https://github.com/RustCrypto/utils/security/advisories/GHSA-2gqc-6j2q-83qp","https://github.com/RustCrypto/utils/commit/55977257e7c82a309d5e8abfdd380a774f0f9778"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-2731","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jan 15, 2026, 7:13:54 PM","dateUpdated":"Jan 15, 2026, 7:57:48 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-2026-2731","identifiers":["EUVD-2026-2731","CVE-2026-23519","GHSA-2gqc-6j2q-83qp"]},"retained":false,"historicalAffected":[]}],"coverage":[]}