{"id":"CVE-2026-83500","aliases":["EUVD-2026-99294","GHSA-qmrc-jr7j-m97x"],"status":"published","title":"Windows BitLocker Security Feature Bypass Vulnerability","description":"Url redirection to untrusted site ('open redirect') in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0045,"percentile":0.39564,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-601"],"published":"2026-10-13T18:59:45Z","modified":"2026-11-10T20:35:52Z","products":[{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 21h2"},{"vendor":"microsoft","product":"windows 10 version 22h2"},{"vendor":"microsoft","product":"windows 11 version 23h2"},{"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 11 version 26h2"},{"vendor":"microsoft","product":"windows server 2016"},{"vendor":"microsoft","product":"windows server 2016 (server core installation)"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"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_10_1607"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_11_23h2"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_11_26h2"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83500","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-83500"},{"url":"https://github.com/advisories/GHSA-qmrc-jr7j-m97x"}],"sources":{"cve":[{"id":"CVE-2026-83500","title":"Windows BitLocker Security Feature Bypass Vulnerability","description":"Url redirection to untrusted site ('open redirect') in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.","status":"published","published":"2026-10-13T18:59:45.935Z","modified":"2026-11-10T20:35:52.941Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-601"],"updated_at":"2026-11-10T22:18:28.707469Z"}],"euvd":[{"id":"EUVD-2026-99294","description":"Url redirection to untrusted site ('open redirect') in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.","status":"published","published":"2026-10-13T18:59:45Z","modified":"2026-11-10T20:35:52Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-10T21:23:23.099302Z"}],"ghsa":[{"id":"GHSA-qmrc-jr7j-m97x","title":"Url redirection to untrusted site ('open redirect') in Windows BitLocker allows an unauthorized...","description":"Url redirection to untrusted site ('open redirect') in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.","status":"published","published":"2026-10-13T21:34:25Z","modified":"2026-10-13T21:34:25Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T15:13:15.646152Z"}],"nvd":[{"id":"CVE-2026-83500","description":"Url redirection to untrusted site ('open redirect') in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.","status":"published","published":"2026-10-13T19:19:55.15Z","modified":"2026-10-28T18:17:15.63Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:12:57.603498Z"}]}}