{"cveID":"CVE-2023-40044","vendorProject":"Progress","product":"WS_FTP Server","vulnerabilityName":"Progress WS_FTP Server Deserialization of Untrusted Data Vulnerability","dateAdded":"2023-10-05","shortDescription":"Progress WS_FTP Server contains a deserialization of untrusted data vulnerability in the Ad Hoc Transfer module that allows an authenticated attacker to execute remote commands on the underlying operating system.","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","dueDate":"2023-10-26","knownRansomwareCampaignUse":"Known","notes":"https://community.progress.com/s/article/WS-FTP-Server-Critical-Vulnerability-September-2023; https://nvd.nist.gov/vuln/detail/CVE-2023-40044","cwes":["CWE-502"],"year":2023,"state":"mapped","stale_reasons":[],"mappings":[{"domain":"enterprise","cve":"CVE-2023-40044","technique":"T1059","technique_name_at_mapping":"Command and Scripting Interpreter","mapping_type":"exploitation_technique","capability_group":"untrusted_data","comments":"Zero-day .NET deserialization vulnerability that allows an adversary to make an HTTP POST request to a vulnerable WS_FTP Server and execute commands.","references":["https://www.assetnote.io/resources/research/rce-in-progress-ws-ftp-ad-hoc-via-iis-http-modules-cve-2023-40044","https://www.tenable.com/blog/cve-2023-40044-cve-2023-42657-progress-software-patches-multiple-vulnerabilities-in-ws-ftp"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"},{"domain":"enterprise","cve":"CVE-2023-40044","technique":"T1071.002","technique_name_at_mapping":"File Transfer Protocols","mapping_type":"primary_impact","capability_group":"untrusted_data","comments":"Zero-day .NET deserialization vulnerability that allows an adversary to make an HTTP POST request to a vulnerable WS_FTP Server and execute commands.","references":["https://www.assetnote.io/resources/research/rce-in-progress-ws-ftp-ad-hoc-via-iis-http-modules-cve-2023-40044","https://www.tenable.com/blog/cve-2023-40044-cve-2023-42657-progress-software-patches-multiple-vulnerabilities-in-ws-ftp"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"},{"domain":"enterprise","cve":"CVE-2023-40044","technique":"T1202","technique_name_at_mapping":"Indirect Command Execution","mapping_type":"secondary_impact","capability_group":"untrusted_data","comments":"Zero-day .NET deserialization vulnerability that allows an adversary to make an HTTP POST request to a vulnerable WS_FTP Server and execute commands.","references":["https://www.assetnote.io/resources/research/rce-in-progress-ws-ftp-ad-hoc-via-iis-http-modules-cve-2023-40044","https://www.tenable.com/blog/cve-2023-40044-cve-2023-42657-progress-software-patches-multiple-vulnerabilities-in-ws-ftp"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"}],"techniques":[{"id":"T1059","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Command and Scripting Interpreter","name_at_mapping":"Command and Scripting Interpreter","renamed":false,"revoked_by":null,"mapping_types":["exploitation_technique"],"sigma_rule_count":95,"has_detection_strategy":true},{"id":"T1071.002","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"File Transfer Protocols","name_at_mapping":"File Transfer Protocols","renamed":false,"revoked_by":null,"mapping_types":["primary_impact"],"sigma_rule_count":0,"has_detection_strategy":true},{"id":"T1202","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Indirect Command Execution","name_at_mapping":"Indirect Command Execution","renamed":false,"revoked_by":null,"mapping_types":["secondary_impact"],"sigma_rule_count":40,"has_detection_strategy":true}],"mapping_types":["exploitation_technique","primary_impact","secondary_impact"],"has_exploitation_technique":true,"mapping_attack_versions":["16.1"],"mapping_domains":["enterprise"],"sigma_coverage":"partial","sigma_rules_tagged_cve":[],"added_after_mapping_snapshot":false,"_source":"kevmap","_built":"2026-08-24 19:45 UTC","_attack_version":"19.2"}