{"cve_id":"CVE-2025-59287","published":"2025-10-14T17:16:11.670000+00:00","last_modified":"2026-06-17T09:45:52.480000+00:00","vuln_status":"Analyzed","description":"Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","base_score":9.8,"base_severity":"CRITICAL","attack_vector":"NETWORK","privileges_req":"NONE","user_interaction":"NONE","scope":"UNCHANGED","impact_c":"HIGH","impact_i":"HIGH","impact_a":"HIGH","cwe_ids":["CWE-502"],"in_kev":true,"kev_date_added":"2025-10-24","kev_ransomware":false,"epss_score":0.9998,"epss_percentile":0.99981,"cap_rule_version":"0.1.1","stage":"INITIAL_ACCESS","req_access":"NONE","req_vector":"NETWORK","req_user_interaction":false,"grant_access":"USER","caps":["CODE_EXEC"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T11:48:31.755706+00:00","first_seen":"2025-10-14T17:16:11.670000+00:00","kev_first_seen":"2025-10-24T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["microsoft"],"products":["windows_server_2012","windows_server_2016","windows_server_2019","windows_server_2022","windows_server_2022_23h2","windows_server_2025"],"affected":[{"vendor":"microsoft","product":"windows_server_2012","ranges":["all versions","r2"]},{"vendor":"microsoft","product":"windows_server_2016","ranges":["< 10.0.14393.8524"]},{"vendor":"microsoft","product":"windows_server_2019","ranges":["< 10.0.17763.7922"]},{"vendor":"microsoft","product":"windows_server_2022","ranges":["< 10.0.20348.4297"]},{"vendor":"microsoft","product":"windows_server_2022_23h2","ranges":["< 10.0.25398.1916"]},{"vendor":"microsoft","product":"windows_server_2025","ranges":["< 10.0.26100.6905"]}]}