{"cve_id":"CVE-2023-40044","published":"2023-09-27T15:18:57.307000+00:00","last_modified":"2026-06-17T06:15:55.110000+00:00","vuln_status":"Analyzed","description":"In WS_FTP Server versions prior to 8.7.4 and 8.8.2, a pre-authenticated attacker could leverage a .NET deserialization vulnerability in the Ad Hoc Transfer module to execute remote commands on the underlying WS_FTP Server operating system.","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","base_score":8.8,"base_severity":"HIGH","attack_vector":"NETWORK","privileges_req":"LOW","user_interaction":"NONE","scope":"UNCHANGED","impact_c":"HIGH","impact_i":"HIGH","impact_a":"HIGH","cwe_ids":["CWE-502"],"in_kev":true,"kev_date_added":"2023-10-05","kev_ransomware":true,"epss_score":0.90355,"epss_percentile":0.99799,"cap_rule_version":"0.1.1","stage":"EXECUTION","req_access":"USER","req_vector":"NETWORK","req_user_interaction":false,"grant_access":"USER","caps":["CODE_EXEC"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T10:39:30.644357+00:00","first_seen":"2023-09-27T15:18:57.307000+00:00","kev_first_seen":"2023-10-05T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["progress"],"products":["ws_ftp_server"],"affected":[{"vendor":"progress","product":"ws_ftp_server","ranges":["< 8.7.4","≥ 8.8 and < 8.8.2"]}]}