{"id":"CVE-2026-48576","aliases":["EUVD-2026-35525","GHSA-4636-q739-m8jq"],"status":"published","title":"Secure Boot Security Feature Bypass Vulnerability","description":"No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.","severity":{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01028,"percentile":0.63902,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1329"],"published":"2026-06-09T17:05:14Z","modified":"2026-09-24T13:44:11Z","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 server 2012"},{"vendor":"microsoft","product":"windows server 2012 (server core installation)"},{"vendor":"microsoft","product":"windows server 2012 r2"},{"vendor":"microsoft","product":"windows server 2012 r2 (server core installation)"},{"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_server_2012"},{"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-2026-48576","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48576"},{"url":"https://github.com/advisories/GHSA-4636-q739-m8jq"}],"sources":{"cve":[{"id":"CVE-2026-48576","title":"Secure Boot Security Feature Bypass Vulnerability","description":"No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.","status":"published","published":"2026-06-09T17:05:14.954Z","modified":"2026-09-24T13:44:11.821Z","cvss":[{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-1329"],"updated_at":"2026-11-02T13:50:49.872037Z"}],"euvd":[{"id":"EUVD-2026-35525","description":"No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.","status":"published","published":"2026-06-09T17:05:14Z","modified":"2026-09-24T13:44:11Z","cvss":[{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T17:27:59.112143Z"}],"ghsa":[{"id":"GHSA-4636-q739-m8jq","title":"Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a...","description":"Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.","status":"published","published":"2026-06-09T18:31:00Z","modified":"2026-06-09T18:31:10Z","cvss":[{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-1329"],"updated_at":"2026-11-02T15:08:42.712998Z"}],"nvd":[{"id":"CVE-2026-48576","description":"No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.","status":"published","published":"2026-06-09T17:17:46.373Z","modified":"2026-07-23T08:10:00.137Z","cvss":[{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-1329"],"updated_at":"2026-11-02T14:12:23.109705Z"}]}}