{"id":"CVE-2020-36404","aliases":["EUVD-2020-23932","GHSA-w4h7-3hcx-qgv6"],"status":"published","title":"Keystone Engine 0.9.2 has an invalid free in llvm_ks::SmallVectorImpl\u003cllvm_ks::MCFixup\u003e::...","description":"Keystone Engine 0.9.2 has an invalid free in llvm_ks::SmallVectorImpl\u003cllvm_ks::MCFixup\u003e::~SmallVectorImpl.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01093,"percentile":0.65672,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-763"],"published":"2021-07-01T02:52:05Z","modified":"2026-06-17T03:15:25Z","products":[{"vendor":"keystone-engine","product":"keystone"}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22371","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory"]},{"url":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/keystone/OSV-2020-1506.yaml","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://github.com/keystone-engine/keystone/releases","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36404"},{"url":"https://github.com/advisories/GHSA-w4h7-3hcx-qgv6"}],"sources":{"cve":[{"id":"CVE-2020-36404","description":"Keystone Engine 0.9.2 has an invalid free in llvm_ks::SmallVectorImpl\u003cllvm_ks::MCFixup\u003e::~SmallVectorImpl.","status":"published","published":"2021-07-01T02:52:05Z","modified":"2024-08-04T17:23:10.56Z","updated_at":"2026-11-02T14:35:55.128961Z"}],"euvd":[{"id":"EUVD-2020-23932","description":"Keystone Engine 0.9.2 has an invalid free in llvm_ks::SmallVectorImpl\u003cllvm_ks::MCFixup\u003e::~SmallVectorImpl.","status":"published","published":"2021-07-01T02:52:05Z","modified":"2024-08-04T17:23:10Z","updated_at":"2026-11-03T03:07:03.484914Z"}],"ghsa":[{"id":"GHSA-w4h7-3hcx-qgv6","title":"Keystone Engine 0.9.2 has an invalid free in llvm_ks::SmallVectorImpl\u003cllvm_ks::MCFixup\u003e::...","description":"Keystone Engine 0.9.2 has an invalid free in llvm_ks::SmallVectorImpl\u003cllvm_ks::MCFixup\u003e::~SmallVectorImpl.","status":"published","published":"2022-05-24T19:06:45Z","modified":"2023-01-30T05:00:35Z","cwes":["CWE-763"],"updated_at":"2026-11-02T14:46:14.069279Z"}],"nvd":[{"id":"CVE-2020-36404","description":"Keystone Engine 0.9.2 has an invalid free in llvm_ks::SmallVectorImpl\u003cllvm_ks::MCFixup\u003e::~SmallVectorImpl.","status":"published","published":"2021-07-01T03:15:07.927Z","modified":"2026-06-17T03:15:25.39Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-763"],"updated_at":"2026-11-02T14:06:44.292752Z"}]}}