{"id":"CVE-2021-38592","aliases":["EUVD-2021-25034","GHSA-w873-jf59-8229"],"status":"published","title":"Wasm3 0.5.0 has a heap-based buffer overflow in op_Const64 (called from EvaluateExpression and...","description":"Wasm3 0.5.0 has a heap-based buffer overflow in op_Const64 (called from EvaluateExpression and m3_LoadModule).","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01294,"percentile":0.70558,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-08-12T01:19:57Z","modified":"2026-10-24T10:31:00Z","products":[{"vendor":"wasm3_project","product":"wasm3"}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33554","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wasm3/OSV-2021-676.yaml","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38592"},{"url":"https://github.com/advisories/GHSA-w873-jf59-8229"}],"sources":{"cve":[{"id":"CVE-2021-38592","description":"Wasm3 0.5.0 has a heap-based buffer overflow in op_Const64 (called from EvaluateExpression and m3_LoadModule).","status":"published","published":"2021-08-12T01:19:57Z","modified":"2024-08-04T01:44:23.519Z","updated_at":"2026-11-02T14:33:07.697752Z"}],"euvd":[{"id":"EUVD-2021-25034","description":"Wasm3 0.5.0 has a heap-based buffer overflow in op_Const64 (called from EvaluateExpression and m3_LoadModule).","status":"published","published":"2021-08-12T01:19:57Z","modified":"2024-08-04T01:44:23Z","updated_at":"2026-11-03T03:24:24.781045Z"}],"ghsa":[{"id":"GHSA-w873-jf59-8229","title":"Wasm3 0.5.0 has a heap-based buffer overflow in op_Const64 (called from EvaluateExpression and...","description":"Wasm3 0.5.0 has a heap-based buffer overflow in op_Const64 (called from EvaluateExpression and m3_LoadModule).","status":"published","published":"2022-05-24T19:10:59Z","modified":"2023-01-30T05:01:32Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:46:25.989719Z"}],"nvd":[{"id":"CVE-2021-38592","description":"Wasm3 0.5.0 has a heap-based buffer overflow in op_Const64 (called from EvaluateExpression and m3_LoadModule).","status":"published","published":"2021-08-12T02:15:06.527Z","modified":"2026-06-17T04:02:24.97Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:56.943671Z"}],"osv":[{"id":"CVE-2021-38592","description":"Wasm3 0.5.0 has a heap-based buffer overflow in op_Const64 (called from EvaluateExpression and m3_LoadModule).","status":"published","published":"2021-08-12T02:15:06.527Z","modified":"2026-10-24T10:31:00.543707654Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:20.843843Z"}]}}