{"id":"CVE-2021-45706","aliases":["EUVD-2022-0554","GHSA-c5hx-w945-j4pq","RUSTSEC-2021-0115"],"status":"published","title":"Memory flaw in zeroize_derive","description":"An issue was discovered in the zeroize_derive crate before 1.1.1 for Rust. Dropped memory is not zeroed out for an enum.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.0123,"percentile":0.69356,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-459"],"published":"2021-09-24T12:00:00Z","modified":"2026-06-17T04:13:59Z","fixes":[{"ecosystem":"crates.io","package":"zeroize_derive","fixed_in":["1.1.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"crates.io","package":"zeroize_derive","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.1"}]}]},{"source":"osv","ecosystem":"crates.io","package":"zeroize_derive","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.1.1"}]}]},{"source":"osv","ecosystem":"crates.io","package":"zeroize_derive","ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"},{"fixed":"1.1.1"}]}]}],"products":[{"vendor":"zeroize_derive_project","product":"zeroize_derive"}],"references":[{"url":"https://rustsec.org/advisories/RUSTSEC-2021-0115.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","web","advisory"]},{"url":"https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/zeroize_derive/RUSTSEC-2021-0115.md","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45706","tags":["advisory"]},{"url":"https://github.com/iqlusioninc/crates/issues/876","tags":["web","report"]},{"url":"https://github.com/advisories/GHSA-c5hx-w945-j4pq"},{"url":"https://github.com/RustCrypto/utils/tree/master/zeroize/derive","tags":["package"]},{"url":"https://crates.io/crates/zeroize_derive","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-45706","description":"An issue was discovered in the zeroize_derive crate before 1.1.1 for Rust. Dropped memory is not zeroed out for an enum.","status":"published","published":"2021-12-26T21:48:11Z","modified":"2024-08-04T04:47:02.137Z","updated_at":"2026-11-02T14:33:02.580561Z"}],"euvd":[{"id":"EUVD-2022-0554","description":"An issue was discovered in the zeroize_derive crate before 1.1.1 for Rust. Dropped memory is not zeroed out for an enum.","status":"published","published":"2021-12-26T21:48:11Z","modified":"2024-08-04T04:47:02Z","updated_at":"2026-11-03T03:08:25.77408Z"}],"ghsa":[{"id":"GHSA-c5hx-w945-j4pq","title":"Memory flaw in zeroize_derive","description":"An issue was discovered in the zeroize_derive crate before 1.1.1 for Rust. Dropped memory is not zeroed out for an enum.","status":"published","published":"2022-01-06T22:08:33Z","modified":"2023-01-27T05:00:34Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-459"],"updated_at":"2026-11-02T14:36:14.825433Z"}],"nvd":[{"id":"CVE-2021-45706","description":"An issue was discovered in the zeroize_derive crate before 1.1.1 for Rust. Dropped memory is not zeroed out for an enum.","status":"published","published":"2021-12-27T00:15:09.9Z","modified":"2026-06-17T04:13:59.26Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-459"],"updated_at":"2026-11-02T14:07:02.977492Z"}],"osv":[{"id":"GHSA-c5hx-w945-j4pq","title":"Memory flaw in zeroize_derive","description":"An issue was discovered in the zeroize_derive crate before 1.1.1 for Rust. Dropped memory is not zeroed out for an enum.","status":"published","published":"2022-01-06T22:08:33Z","modified":"2023-11-08T04:07:22.993048Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-459"],"updated_at":"2026-11-02T15:46:44.571161Z"},{"id":"RUSTSEC-2021-0115","title":"`#[zeroize(drop)]` doesn't implement `Drop` for `enum`s","description":"Affected versions of this crate did not implement `Drop` when `#[zeroize(drop)]` was used on an `enum`.\n\nThis can result in memory not being zeroed out after dropping it, which is exactly what is intended when adding this attribute.\n\nThe flaw was corrected in version 1.2 and `#[zeroize(drop)]` on `enum`s now properly implements `Drop`.","status":"published","published":"2021-09-24T12:00:00Z","modified":"2023-11-08T04:07:22.993048Z","updated_at":"2026-11-02T15:53:39.492624Z"}]}}