{"id":"CVE-2025-49735","aliases":["EUVD-2025-20620","GHSA-hq3j-8wc4-4985"],"status":"published","title":"Windows KDC Proxy Service (KPSSVC) Remote Code Execution Vulnerability","description":"Use after free in Windows KDC Proxy Service (KPSSVC) allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/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":0.01199,"percentile":0.68418,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2025-07-08T16:57:25Z","modified":"2026-06-17T09:31:51Z","products":[{"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_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-2025-49735","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-49735"},{"url":"https://github.com/advisories/GHSA-hq3j-8wc4-4985"}],"sources":{"cve":[{"id":"CVE-2025-49735","title":"Windows KDC Proxy Service (KPSSVC) Remote Code Execution Vulnerability","description":"Use after free in Windows KDC Proxy Service (KPSSVC) allows an unauthorized attacker to execute code over a network.","status":"published","published":"2025-07-08T16:57:25.143Z","modified":"2026-02-26T18:27:43.62Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:32:24.825718Z"}],"euvd":[{"id":"EUVD-2025-20620","description":"Use after free in Windows KDC Proxy Service (KPSSVC) allows an unauthorized attacker to execute code over a network.","status":"published","published":"2025-07-08T16:57:25Z","modified":"2026-02-26T18:27:43Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T19:48:18.130322Z"}],"ghsa":[{"id":"GHSA-hq3j-8wc4-4985","title":"Use after free in Windows KDC Proxy Service (KPSSVC) allows an unauthorized attacker to execute...","description":"Use after free in Windows KDC Proxy Service (KPSSVC) allows an unauthorized attacker to execute code over a network.","status":"published","published":"2025-07-08T18:31:51Z","modified":"2025-07-08T18:31:59Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T15:02:57.612558Z"}],"nvd":[{"id":"CVE-2025-49735","description":"Use after free in Windows KDC Proxy Service (KPSSVC) allows an unauthorized attacker to execute code over a network.","status":"published","published":"2025-07-08T17:16:02.27Z","modified":"2026-06-17T09:31:51.383Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:11:17.727956Z"}]}}