{"action":"Upgrade wasmtime to 4.0.1 or later.","affected":[{"fixed":"4.0.1","introduced":"1.0.0"},{"fixed":"5.0.1","introduced":"5.0.0"},{"fixed":"6.0.1","introduced":"6.0.0"}],"component":"wasmtime","cve_ids":["CVE-2023-27477"],"ecosystem":"crates.io","epss":0.00624,"exploited":false,"fixed_versions":["4.0.1","5.0.1","6.0.1"],"ghsa_id":"GHSA-xm67-587q-r2vw","id":"tcs_01M5KF4RYGCW5JWJWSA6XFVBKE","modified_at":"2026-09-10T03:49:53.157590987Z","published_at":"2023-03-09T00:09:03Z","references":["https://osv.dev/vulnerability/GHSA-xm67-587q-r2vw","https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-xm67-587q-r2vw","https://nvd.nist.gov/vuln/detail/CVE-2023-27477","https://github.com/bytecodealliance/wasmtime/commit/5dc2bbccbb363e474d2c9a1b8e38a89a43bbd5d1","https://docs.rs/wasmtime/latest/wasmtime/struct.Config.html#method.wasm_simd","https://github.com/bytecodealliance/wasmtime","https://github.com/webassembly/simd","https://groups.google.com/a/bytecodealliance.org/g/sec-announce/c/Mov-ItrNJsQ","https://rustsec.org/advisories/RUSTSEC-2023-0093.html"],"severity":{"label":"low","score":3.1},"sources":[{"source":"osv","source_id":"GHSA-xm67-587q-r2vw","url":"https://osv.dev/vulnerability/GHSA-xm67-587q-r2vw"}],"summary":"wasmtime vulnerable to miscompilation of `i8x16.select` with the same inputs on x86_64"}