{"id":"CVE-2020-36405","aliases":["EUVD-2020-23933","GHSA-8qf3-hc2j-g9wq"],"status":"published","title":"Keystone Engine 0.9.2 has a use-after-free in llvm_ks::X86Operand::getToken.","description":"Keystone Engine 0.9.2 has a use-after-free in llvm_ks::X86Operand::getToken.","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":"2026-11-11","score":0.01101,"percentile":0.66111,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2021-07-01T02:52:16Z","modified":"2026-06-17T03:15:25Z","products":[{"vendor":"keystone-engine","product":"keystone_engine"}],"references":[{"url":"https://github.com/keystone-engine/keystone/releases","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory"]},{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22850","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/keystone/OSV-2020-789.yaml","tags":["x_refsource_MISC","x_transferred","Technical Description","article"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36405"},{"url":"https://github.com/advisories/GHSA-8qf3-hc2j-g9wq"}],"sources":{"cve":[{"id":"CVE-2020-36405","description":"Keystone Engine 0.9.2 has a use-after-free in llvm_ks::X86Operand::getToken.","status":"published","published":"2021-07-01T02:52:16Z","modified":"2024-08-04T17:23:10.553Z","updated_at":"2026-11-02T14:35:55.128961Z"}],"euvd":[{"id":"EUVD-2020-23933","description":"Keystone Engine 0.9.2 has a use-after-free in llvm_ks::X86Operand::getToken.","status":"published","published":"2021-07-01T02:52:16Z","modified":"2024-08-04T17:23:10Z","updated_at":"2026-11-03T03:07:03.484914Z"}],"ghsa":[{"id":"GHSA-8qf3-hc2j-g9wq","title":"Keystone Engine 0.9.2 has a use-after-free in llvm_ks::X86Operand::getToken.","description":"Keystone Engine 0.9.2 has a use-after-free in llvm_ks::X86Operand::getToken.","status":"published","published":"2022-05-24T19:06:46Z","modified":"2023-01-30T05:00:36Z","cwes":["CWE-416"],"updated_at":"2026-11-02T14:46:14.069279Z"}],"nvd":[{"id":"CVE-2020-36405","description":"Keystone Engine 0.9.2 has a use-after-free in llvm_ks::X86Operand::getToken.","status":"published","published":"2021-07-01T03:15:07.963Z","modified":"2026-06-17T03:15:25.52Z","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-416"],"updated_at":"2026-11-02T14:06:44.292752Z"}],"osv":[{"id":"CVE-2020-36405","description":"Keystone Engine 0.9.2 has a use-after-free in llvm_ks::X86Operand::getToken.","status":"published","published":"2021-07-01T03:15:07.963Z","modified":"2026-03-14T10:29:43.955786Z","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"}],"updated_at":"2026-11-02T15:44:16.936975Z"}]}}