{"cveID":"CVE-2019-19781","vendorProject":"Citrix","product":"Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance","vulnerabilityName":"Citrix ADC, Gateway, and SD-WAN WANOP Appliance Code Execution Vulnerability","dateAdded":"2021-11-03","shortDescription":"Citrix ADC, Citrix Gateway, and multiple Citrix SD-WAN WANOP appliance models contain an unspecified vulnerability that could allow an unauthenticated attacker to perform code execution.","requiredAction":"Apply updates per vendor instructions.","dueDate":"2022-05-03","knownRansomwareCampaignUse":"Known","notes":"https://nvd.nist.gov/vuln/detail/CVE-2019-19781","cwes":["CWE-22"],"year":2019,"state":"mapped","stale_reasons":[],"mappings":[{"domain":"enterprise","cve":"CVE-2019-19781","technique":"T1133","technique_name_at_mapping":"External Remote Services","mapping_type":"exploitation_technique","capability_group":"code_execution","comments":"CVE-2019-19781 is exploited through directory traversal, allowing an unauthenticated attacker to execute arbitrary code on affected Citrix Netscaler Application Delivery Control (ADC). ","references":["https://www.ic3.gov/CSA/2021/210426.pdf","https://www.cisa.gov/news-events/cybersecurity-advisories/aa21-209a"],"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-2019-19781","technique":"T1059","technique_name_at_mapping":"Command and Scripting Interpreter","mapping_type":"primary_impact","capability_group":"code_execution","comments":"CVE-2019-19781 is exploited through directory traversal, allowing an unauthenticated attacker to execute arbitrary code on affected Citrix Netscaler Application Delivery Control (ADC). ","references":["https://www.ic3.gov/CSA/2021/210426.pdf","https://www.cisa.gov/news-events/cybersecurity-advisories/aa21-209a"],"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-2019-19781","technique":"T1083","technique_name_at_mapping":"File and Directory Discovery","mapping_type":"secondary_impact","capability_group":"code_execution","comments":"CVE-2019-19781 is exploited through directory traversal, allowing an unauthenticated attacker to execute arbitrary code on affected Citrix Netscaler Application Delivery Control (ADC). ","references":["https://www.ic3.gov/CSA/2021/210426.pdf","https://www.cisa.gov/news-events/cybersecurity-advisories/aa21-209a"],"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":["primary_impact"],"sigma_rule_count":95,"has_detection_strategy":true},{"id":"T1083","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"File and Directory Discovery","name_at_mapping":"File and Directory Discovery","renamed":false,"revoked_by":null,"mapping_types":["secondary_impact"],"sigma_rule_count":24,"has_detection_strategy":true},{"id":"T1133","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"External Remote Services","name_at_mapping":"External Remote Services","renamed":false,"revoked_by":null,"mapping_types":["exploitation_technique"],"sigma_rule_count":20,"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":"full","sigma_rules_tagged_cve":["ac5a6409-8c89-44c2-8d64-668c29a2d756"],"added_after_mapping_snapshot":false,"_source":"kevmap","_built":"2026-08-24 19:45 UTC","_attack_version":"19.2"}