{"cve":"CVE-2020-35903","nvd":{"published":"2020-12-31T09:15:15.020","modified":"2026-06-17T03:14:34.373","status":"Modified","description":"An issue was discovered in the dync crate before 0.5.0 for Rust. VecCopy allows misaligned element access because u8 is not always the type in question.","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":[],"references":["https://rustsec.org/advisories/RUSTSEC-2020-0050.html","https://rustsec.org/advisories/RUSTSEC-2020-0050.html"],"products":["dync_project:dync"],"source":"nvd","synced_at":"2026-10-19T21:12:09.559580076+00:00"},"epss":{"cve":"CVE-2020-35903","score":0.00379,"percentile":0.31897,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-qxjq-v4wf-ppvh","url":"https://osv.dev/vulnerability/GHSA-qxjq-v4wf-ppvh","summary":"Out of bounds read in dync","modified":"2023-11-08T04:03:38.488178Z","packages":[{"ecosystem":"crates.io","name":"dync","purl":"pkg:cargo/dync","ranges":["<0.5.0"],"fixed":["0.5.0"]}]},{"id":"RUSTSEC-2020-0050","url":"https://osv.dev/vulnerability/RUSTSEC-2020-0050","summary":"VecCopy allows misaligned access to elements","modified":"2023-11-08T04:03:38.488178Z","packages":[{"ecosystem":"crates.io","name":"dync","purl":"pkg:cargo/dync","ranges":[">=0.0.0-0 <0.5.0"],"fixed":["0.5.0"]}]}],"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."]}