{"id":"CVE-2026-50418","aliases":["EUVD-2026-43923","GHSA-56fw-c5xp-6pv2"],"status":"published","title":"Windows System Secure Feature Bypass Vulnerability","description":"Improper access control in Windows System allows an unauthorized attacker to bypass a security feature locally.","severity":{"version":"3.1","score":5.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00266,"percentile":0.18605,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-284"],"published":"2026-07-14T17:07:03Z","modified":"2026-11-01T17:34:44Z","products":[{"vendor":"microsoft","product":"windows 11 version 24h2"},{"vendor":"microsoft","product":"windows 11 version 25h2"},{"vendor":"microsoft","product":"windows 11 version 26h1"},{"vendor":"microsoft","product":"windows server 2022"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50418","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50418"},{"url":"https://github.com/advisories/GHSA-56fw-c5xp-6pv2"}],"sources":{"cve":[{"id":"CVE-2026-50418","title":"Windows System Secure Feature Bypass Vulnerability","description":"Improper access control in Windows System allows an unauthorized attacker to bypass a security feature locally.","status":"published","published":"2026-07-14T17:07:03.025Z","modified":"2026-11-01T17:34:44.518Z","cvss":[{"version":"3.1","score":5.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:20:09.098623Z"}],"euvd":[{"id":"EUVD-2026-43923","description":"Improper access control in Windows System allows an unauthorized attacker to bypass a security feature locally.","status":"published","published":"2026-07-14T17:07:03Z","modified":"2026-11-01T17:34:44Z","cvss":[{"version":"3.1","score":5.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T16:58:48.316156Z"}],"ghsa":[{"id":"GHSA-56fw-c5xp-6pv2","title":"Improper access control in Windows System allows an unauthorized attacker to bypass a security...","description":"Improper access control in Windows System allows an unauthorized attacker to bypass a security feature locally.","status":"published","published":"2026-07-14T18:32:22Z","modified":"2026-07-14T18:32:27Z","cvss":[{"version":"3.1","score":5.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T15:09:29.53235Z"}],"nvd":[{"id":"CVE-2026-50418","description":"Improper access control in Windows System allows an unauthorized attacker to bypass a security feature locally.","status":"published","published":"2026-07-14T18:17:44.99Z","modified":"2026-07-22T16:17:53.71Z","cvss":[{"version":"3.1","score":5.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:12:29.489525Z"}]}}