{"cve":"CVE-2020-35862","nvd":{"published":"2020-12-31T10:15:15.050","modified":"2026-06-17T03:14:29.140","status":"Modified","description":"An issue was discovered in the bitvec crate before 0.17.4 for Rust. BitVec to BitBox conversion leads to a use-after-free or double free.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-415","CWE-416"],"references":["https://rustsec.org/advisories/RUSTSEC-2020-0007.html","https://rustsec.org/advisories/RUSTSEC-2020-0007.html"],"products":["bitvec_project:bitvec"],"source":"nvd","synced_at":"2026-10-19T21:12:09.559580076+00:00"},"epss":{"cve":"CVE-2020-35862","score":0.01649,"percentile":0.76508,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-7cjc-hvxf-gqh7","url":"https://osv.dev/vulnerability/GHSA-7cjc-hvxf-gqh7","summary":"Use after free and double free in bitvec","modified":"2023-11-08T04:03:36.155899Z","packages":[{"ecosystem":"crates.io","name":"bitvec","purl":"pkg:cargo/bitvec","ranges":[">=0.11.0 <0.17.4"],"fixed":["0.17.4"]}]},{"id":"RUSTSEC-2020-0007","url":"https://osv.dev/vulnerability/RUSTSEC-2020-0007","summary":"use-after or double free of allocated memory","modified":"2023-11-08T04:03:36.155899Z","packages":[{"ecosystem":"crates.io","name":"bitvec","purl":"pkg:cargo/bitvec","ranges":[">=0.11.0 <0.17.4"],"fixed":["0.17.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}