{"id":"CVE-2026-27928","title":"Windows Hello Security Feature Bypass Vulnerability","summary":"Improper input validation in Windows Hello allows an unauthorized attacker to bypass a security feature over a network.","severity":"high","cvss":8.7,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-20"],"vendor":"Microsoft","product":"Windows Server 2016","affected":["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":"total","timestamp":"2026-04-14T19:10:11.707317Z"},"published":"2026-04-14","updated":"2026-09-25","sourceUpdated":"2026-09-25T17:25:53.428Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-27928","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27928","label":"Windows Hello Security Feature Bypass Vulnerability"}],"tags":["cve.org"],"epss":0.00707,"epssPercentile":0.51361,"ingestedAt":"2026-09-25T18:14:20.429Z","slug":"CVE-2026-27928","body":"## Overview\n\nImproper input validation in Windows Hello allows an unauthorized attacker to bypass a security feature over a network.\n\n## Affected\n\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":"twilight","depthScore":48,"depthScoreParts":{"impact":47.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}