{"id":"CVE-2020-36464","aliases":["GHSA-qgwf-r2jj-2ccv","RUSTSEC-2020-0145"],"url":"https://o3.security/vulnerability/CVE-2020-36464","summary":"Use after free in heapless","details":"An issue was discovered in the heapless crate before 0.6.1 for Rust. The IntoIter Clone implementation clones an entire underlying Vec without considering whether it has already been partially consumed.","published":"2021-08-08T06:15:08.080Z","modified":"2026-08-27T08:40:17.803526Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.01233,"percentile":0.66806,"asOf":"2026-08-27"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"crates.io","name":"heapless","fixedVersion":"0.6.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/heapless/RUSTSEC-2020-0145.md"},{"type":"FIX","url":"https://rustsec.org/advisories/RUSTSEC-2020-0145.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36464"},{"type":"WEB","url":"https://github.com/japaric/heapless/issues/181"},{"type":"PACKAGE","url":"https://github.com/japaric/heapless"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T08:40:17.803526Z"}}