{"cve":"CVE-2021-29930","nvd":{"published":"2021-04-01T05:15:14.267","modified":"2026-06-17T03:48:27.567","status":"Modified","description":"An issue was discovered in the arenavec crate through 2021-01-12 for Rust. A drop of uninitialized memory can sometimes occur upon a panic in T::default().","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-787"],"references":["https://rustsec.org/advisories/RUSTSEC-2021-0040.html","https://rustsec.org/advisories/RUSTSEC-2021-0040.html"],"products":["arenavec_project:arenavec"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2021-29930","score":0.01175,"percentile":0.67574,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-327x-39hh-65wf","url":"https://osv.dev/vulnerability/GHSA-327x-39hh-65wf","summary":"Out of bounds write in arenavec","modified":"2023-11-08T04:05:43.636978Z","packages":[{"ecosystem":"crates.io","name":"arenavec","purl":"pkg:cargo/arenavec","ranges":["<=0.1.1"],"fixed":[]}]},{"id":"GHSA-955p-rc5h-hg6h","url":"https://osv.dev/vulnerability/GHSA-955p-rc5h-hg6h","summary":"Double free in arenavec","modified":"2023-11-08T04:05:43.636978Z","packages":[{"ecosystem":"crates.io","name":"arenavec","purl":"pkg:cargo/arenavec","ranges":["<=0.1.1"],"fixed":[]}]},{"id":"RUSTSEC-2021-0040","url":"https://osv.dev/vulnerability/RUSTSEC-2021-0040","summary":"panic safety: double drop or uninitialized drop of T upon panic","modified":"2023-11-08T04:05:43.636978Z","packages":[{"ecosystem":"crates.io","name":"arenavec","purl":"pkg:cargo/arenavec","ranges":[">=0.0.0-0"],"fixed":[]}]}],"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."]}