{"id":"CVE-2026-65777","aliases":["EUVD-2026-56731","GHSA-92c8-rfc2-vg9x"],"status":"published","title":"Active Directory Security Feature Bypass Vulnerability","description":"Inadequate encryption strength in Windows Active Directory allows an authorized attacker to bypass a security feature over a network.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.0036,"percentile":0.3016,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-326"],"published":"2026-08-11T17:06:52Z","modified":"2026-11-10T22:00:38Z","products":[{"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 2022"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"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_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65777","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65777"},{"url":"https://github.com/advisories/GHSA-92c8-rfc2-vg9x"}],"sources":{"cve":[{"id":"CVE-2026-65777","title":"Active Directory Security Feature Bypass Vulnerability","description":"Inadequate encryption strength in Windows Active Directory allows an authorized attacker to bypass a security feature over a network.","status":"published","published":"2026-08-11T17:06:52.68Z","modified":"2026-11-10T22:00:38.947Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-326"],"updated_at":"2026-11-10T23:49:30.334266Z"}],"euvd":[{"id":"EUVD-2026-56731","description":"Inadequate encryption strength in Windows Active Directory allows an authorized attacker to bypass a security feature over a network.","status":"published","published":"2026-08-11T17:06:52Z","modified":"2026-11-10T22:00:38Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-10T23:24:16.815365Z"}],"ghsa":[{"id":"GHSA-92c8-rfc2-vg9x","title":"Inadequate encryption strength in Windows Active Directory allows an authorized attacker to...","description":"Inadequate encryption strength in Windows Active Directory allows an authorized attacker to bypass a security feature over a network.","status":"published","published":"2026-08-11T18:31:37Z","modified":"2026-08-11T18:31:44Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T15:10:20.045782Z"}],"nvd":[{"id":"CVE-2026-65777","description":"Inadequate encryption strength in Windows Active Directory allows an authorized attacker to bypass a security feature over a network.","status":"published","published":"2026-08-11T17:18:57.05Z","modified":"2026-08-14T17:35:50.23Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:12:36.880938Z"}]}}