{"cve":"CVE-2020-36205","nvd":{"published":"2021-01-26T18:15:55.707","modified":"2026-06-17T03:15:00.277","status":"Modified","description":"An issue was discovered in the xcb crate through 2020-12-10 for Rust. base::Error does not have soundness. Because of the public ptr field, a use-after-free or double-free can occur.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-415","CWE-416"],"references":["https://rustsec.org/advisories/RUSTSEC-2020-0097.html","https://rustsec.org/advisories/RUSTSEC-2020-0097.html"],"products":["xcb_project:xcb"],"source":"nvd","synced_at":"2026-10-19T21:14:10.479542811+00:00"},"epss":{"cve":"CVE-2020-36205","score":0.00406,"percentile":0.34862,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-c8hq-x4mm-p6q6","url":"https://osv.dev/vulnerability/GHSA-c8hq-x4mm-p6q6","summary":"Memory handling issues in xcb","modified":"2023-11-08T04:03:41.417539Z","packages":[{"ecosystem":"crates.io","name":"xcb","purl":"pkg:cargo/xcb","ranges":["<1.0.0"],"fixed":["1.0.0"]}]},{"id":"RUSTSEC-2020-0097","url":"https://osv.dev/vulnerability/RUSTSEC-2020-0097","summary":"Soundness issue with base::Error","modified":"2023-11-08T04:03:41.417539Z","packages":[{"ecosystem":"crates.io","name":"xcb","purl":"pkg:cargo/xcb","ranges":[">=0.0.0-0 <1.0.0"],"fixed":["1.0.0"]}]}],"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."]}