{"id":"CVE-2025-27740","aliases":["EUVD-2025-10142","GHSA-w4rq-mvcf-xc7h"],"status":"published","title":"Active Directory Certificate Services Elevation of Privilege Vulnerability","description":"Weak authentication in Windows Active Directory Certificate Services allows an authorized attacker to elevate privileges over a network.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.03522,"percentile":0.89332,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-1390"],"published":"2025-04-08T17:23:20Z","modified":"2026-08-10T15:12:15Z","exploits":[{"source":"pocgithub","id":"Dannners/CVE-2025-27740_POC","title":"Dannners/CVE-2025-27740_POC","date":"2026-10-27","url":"https://github.com/Dannners/CVE-2025-27740_POC"},{"source":"pocgithub","id":"tyie949/cve-2025-27740","title":"tyie949/cve-2025-27740","date":"2026-10-28","url":"https://github.com/tyie949/cve-2025-27740"}],"products":[{"vendor":"microsoft","product":"windows server 2008 r2 service pack 1"},{"vendor":"microsoft","product":"windows server 2008 r2 service pack 1 (server core installation)"},{"vendor":"microsoft","product":"windows server 2008 service pack 2"},{"vendor":"microsoft","product":"windows server 2008 service pack 2 (server core installation)"},{"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 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_2008"},{"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_2022_23h2"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27740","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-27740"},{"url":"https://github.com/advisories/GHSA-w4rq-mvcf-xc7h"}],"sources":{"cve":[{"id":"CVE-2025-27740","title":"Active Directory Certificate Services Elevation of Privilege Vulnerability","description":"Weak authentication in Windows Active Directory Certificate Services allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2025-04-08T17:23:20.626Z","modified":"2026-08-10T15:12:15.942Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-1390"],"updated_at":"2026-11-02T14:32:42.751171Z"}],"euvd":[{"id":"EUVD-2025-10142","description":"Weak authentication in Windows Active Directory Certificate Services allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2025-04-08T17:23:20Z","modified":"2026-08-10T15:12:15Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T18:02:03.332437Z"}],"ghsa":[{"id":"GHSA-w4rq-mvcf-xc7h","title":"Weak authentication in Windows Active Directory Certificate Services allows an authorized...","description":"Weak authentication in Windows Active Directory Certificate Services allows an 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