{"id":"CVE-2020-1241","aliases":["EUVD-2020-12120","GHSA-8gm4-vvh5-fpv2"],"status":"published","title":"A security feature bypass vulnerability exists when Windows Kernel fails to properly sanitize...","description":"A security feature bypass vulnerability exists when Windows Kernel fails to properly sanitize certain parameters.To exploit the vulnerability, a locally-authenticated attacker could attempt to run a specially crafted application on a targeted system.The update addresses the vulnerability by correcting how Windows Kernel handles parameter sanitization., aka 'Windows Kernel Security Feature Bypass Vulnerability'.","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":0.03257,"percentile":0.88452,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2020-06-09T19:43:36Z","modified":"2026-06-17T03:00:53Z","products":[{"vendor":"microsoft","product":"windows"},{"vendor":"microsoft","product":"windows 10 version 1903 for 32-bit systems"},{"vendor":"microsoft","product":"windows 10 version 1903 for x64-based systems"},{"vendor":"microsoft","product":"windows 10 version 1909 for 32-bit systems"},{"vendor":"microsoft","product":"windows 10 version 1909 for x64-based systems"},{"vendor":"microsoft","product":"windows 10 version 2004 for 32-bit systems"},{"vendor":"microsoft","product":"windows 10 version 2004 for x64-based systems"},{"vendor":"microsoft","product":"windows server"},{"vendor":"microsoft","product":"windows server, version 1903 (server core installation)"},{"vendor":"microsoft","product":"windows server, version 1909 (server core installation)"},{"vendor":"microsoft","product":"windows server, version 2004 (server core installation)"},{"vendor":"microsoft","product":"windows_10"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1241","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-1241"},{"url":"https://github.com/advisories/GHSA-8gm4-vvh5-fpv2"}],"sources":{"cve":[{"id":"CVE-2020-1241","description":"A security feature bypass vulnerability exists when Windows Kernel fails to properly sanitize certain parameters.To exploit the vulnerability, a locally-authenticated attacker could attempt to run a specially crafted application on a targeted system.The update addresses the vulnerability by correcting how Windows Kernel handles parameter sanitization., aka 'Windows Kernel Security Feature Bypass Vulnerability'.","status":"published","published":"2020-06-09T19:43:36Z","modified":"2024-08-04T06:31:59.631Z","updated_at":"2026-11-02T14:35:56.213477Z"}],"euvd":[{"id":"EUVD-2020-12120","description":"A security feature bypass vulnerability exists when Windows Kernel fails to properly sanitize certain parameters.To exploit the vulnerability, a locally-authenticated attacker could attempt to run a specially crafted application on a targeted system.The update addresses the vulnerability by correcting how Windows Kernel handles parameter sanitization., aka 'Windows Kernel Security Feature Bypass Vulnerability'.","status":"published","published":"2020-06-09T19:43:36Z","modified":"2024-08-04T06:31:59Z","updated_at":"2026-11-03T03:08:14.784772Z"}],"ghsa":[{"id":"GHSA-8gm4-vvh5-fpv2","title":"A security feature bypass vulnerability exists when Windows Kernel fails to properly sanitize...","description":"A security feature bypass vulnerability exists when Windows Kernel fails to properly sanitize certain parameters.To exploit the vulnerability, a locally-authenticated attacker could attempt to run a specially crafted application on a targeted system.The update addresses the vulnerability by correcting how Windows Kernel handles parameter sanitization., aka 'Windows Kernel Security Feature Bypass Vulnerability'.","status":"published","published":"2022-05-24T17:19:53Z","modified":"2023-01-29T05:02:56Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:45:12.348503Z"}],"nvd":[{"id":"CVE-2020-1241","description":"A security feature bypass vulnerability exists when Windows Kernel fails to properly sanitize certain parameters.To exploit the vulnerability, a locally-authenticated attacker could attempt to run a specially crafted application on a targeted system.The update addresses the vulnerability by correcting how Windows Kernel handles parameter sanitization., aka 'Windows Kernel Security Feature Bypass Vulnerability'.","status":"published","published":"2020-06-09T20:15:16.177Z","modified":"2026-06-17T03:00:53.153Z","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"}],"updated_at":"2026-11-02T14:06:05.962132Z"}]}}