{"id":"CVE-2025-21193","aliases":["EUVD-2025-2270","GHSA-4wgp-9wjx-2m53"],"status":"published","title":"Active Directory Federation Server Spoofing Vulnerability","description":"Active Directory Federation Server Spoofing Vulnerability","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00741,"percentile":0.54975,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-352"],"published":"2025-01-14T18:04:18Z","modified":"2026-06-17T08:42:44Z","products":[{"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 2022, 23h2 edition (server core installation)"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2022_23h2"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21193","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-21193"},{"url":"https://github.com/advisories/GHSA-4wgp-9wjx-2m53"}],"sources":{"cve":[{"id":"CVE-2025-21193","title":"Active Directory Federation Server Spoofing Vulnerability","description":"Active Directory Federation Server Spoofing Vulnerability","status":"published","published":"2025-01-14T18:04:18.413Z","modified":"2026-06-09T18:29:32.245Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:32:32.702673Z"}],"euvd":[{"id":"EUVD-2025-2270","description":"Active Directory Federation Server Spoofing Vulnerability","status":"published","published":"2025-01-14T18:04:18Z","modified":"2026-06-09T18:29:32Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T18:20:46.83857Z"}],"ghsa":[{"id":"GHSA-4wgp-9wjx-2m53","title":"Active Directory Federation Server Spoofing Vulnerability","description":"Active Directory Federation Server Spoofing Vulnerability","status":"published","published":"2025-01-14T18:32:02Z","modified":"2025-01-14T18:32:12Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:59:30.708513Z"}],"nvd":[{"id":"CVE-2025-21193","description":"Active Directory Federation Server Spoofing Vulnerability","status":"published","published":"2025-01-14T18:15:31.637Z","modified":"2026-06-17T08:42:44.523Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:10:48.373347Z"}]}}