{"cve":"CVE-2021-27377","nvd":{"published":"2021-02-18T04:15:11.763","modified":"2026-06-17T03:44:44.203","status":"Modified","description":"An issue was discovered in the yottadb crate before 1.2.0 for Rust. For some memory-allocation patterns, ydb_subscript_next_st and ydb_subscript_prev_st have a use-after-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-416"],"references":["https://rustsec.org/advisories/RUSTSEC-2021-0022.html","https://rustsec.org/advisories/RUSTSEC-2021-0022.html"],"products":["yottadb:yottadb"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2021-27377","score":0.01355,"percentile":0.71622,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-9658-c26v-7qvf","url":"https://osv.dev/vulnerability/GHSA-9658-c26v-7qvf","summary":"Use-after-free in yottadb","modified":"2023-11-08T04:05:24.490347Z","packages":[{"ecosystem":"crates.io","name":"yottadb","purl":"pkg:cargo/yottadb","ranges":["<1.2.0"],"fixed":["1.2.0"]}]},{"id":"RUSTSEC-2021-0022","url":"https://osv.dev/vulnerability/RUSTSEC-2021-0022","summary":"Use-after-free in `subscript_next` and `subscript_prev` wrappers","modified":"2023-11-08T04:05:24.490347Z","packages":[{"ecosystem":"crates.io","name":"yottadb","purl":"pkg:cargo/yottadb","ranges":[">=0.0.0-0 <1.2.0"],"fixed":["1.2.0"]}]}],"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."]}