{"id":"CVE-2026-26175","title":"Windows Boot Manager Security Feature Bypass Vulnerability","summary":"Use of uninitialized resource in Windows Boot Manager allows an unauthorized attacker to bypass a security feature with a physical attack.","severity":"medium","cvss":4.6,"cvssVector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-908"],"vendor":"Microsoft","product":"Windows 10 Version 1607","affected":["windows_10_version_1607 >= 10.0.14393.0 < 10.0.14393.9060","windows_10_version_1809 >= 10.0.17763.0 < 10.0.17763.8644","windows_10_version_21h2 >= 10.0.19044.0 < 10.0.19044.7184","windows_10_version_22h2 >= 10.0.19045.0 < 10.0.19045.7184","windows_11_version_22h3 >= 10.0.22631.0 < 10.0.22631.6936","windows_11_version_23h2 >= 10.0.22631.0 < 10.0.22631.6936","windows_11_version_24h2 >= 10.0.26100.0 < 10.0.26100.8246","windows_11_version_25h2 >= 10.0.26200.0 < 10.0.26200.8246","windows_11_version_26h1 >= 10.0.28000.0 < 10.0.28000.1836","windows_server_2016 >= 10.0.14393.0 < 10.0.14393.9060","windows_server_2016_server_core_installation >= 10.0.14393.0 < 10.0.14393.9060","windows_server_2019 >= 10.0.17763.0 < 10.0.17763.8644","windows_server_2019_server_core_installation >= 10.0.17763.0 < 10.0.17763.8644","windows_server_2022 >= 10.0.20348.0 < 10.0.20348.5020","windows_server_2022_23h2_edition_server_core_installation >= 10.0.25398.0 < 10.0.25398.2274","windows_server_2025 >= 10.0.26100.0 < 10.0.26100.32690","windows_server_2025_server_core_installation >= 10.0.26100.0 < 10.0.26100.32690"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-04-14T19:34:58.017917Z"},"published":"2026-04-14","updated":"2026-09-25","sourceUpdated":"2026-09-25T17:25:00.282Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-26175","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26175","label":"Windows Boot Manager Security Feature Bypass Vulnerability"}],"tags":["cve.org"],"epss":0.00468,"epssPercentile":0.37845,"ingestedAt":"2026-09-25T18:14:20.458Z","slug":"CVE-2026-26175","body":"## Overview\n\nUse of uninitialized resource in Windows Boot Manager allows an unauthorized attacker to bypass a security feature with a physical attack.\n\n## Affected\n\n- `windows_10_version_1607 >= 10.0.14393.0 < 10.0.14393.9060`\n- `windows_10_version_1809 >= 10.0.17763.0 < 10.0.17763.8644`\n- `windows_10_version_21h2 >= 10.0.19044.0 < 10.0.19044.7184`\n- `windows_10_version_22h2 >= 10.0.19045.0 < 10.0.19045.7184`\n- `windows_11_version_22h3 >= 10.0.22631.0 < 10.0.22631.6936`\n- `windows_11_version_23h2 >= 10.0.22631.0 < 10.0.22631.6936`\n- `windows_11_version_24h2 >= 10.0.26100.0 < 10.0.26100.8246`\n- `windows_11_version_25h2 >= 10.0.26200.0 < 10.0.26200.8246`\n- `windows_11_version_26h1 >= 10.0.28000.0 < 10.0.28000.1836`\n- `windows_server_2016 >= 10.0.14393.0 < 10.0.14393.9060`\n- `windows_server_2016_server_core_installation >= 10.0.14393.0 < 10.0.14393.9060`\n- `windows_server_2019 >= 10.0.17763.0 < 10.0.17763.8644`\n- `windows_server_2019_server_core_installation >= 10.0.17763.0 < 10.0.17763.8644`\n- `windows_server_2022 >= 10.0.20348.0 < 10.0.20348.5020`\n- `windows_server_2022_23h2_edition_server_core_installation >= 10.0.25398.0 < 10.0.25398.2274`\n- `windows_server_2025 >= 10.0.26100.0 < 10.0.26100.32690`\n- `windows_server_2025_server_core_installation >= 10.0.26100.0 < 10.0.26100.32690`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":25,"depthScoreParts":{"impact":25.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}