{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-20181: Cisco Identity Services Engine Remote Code Execution Vulnerability","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-20181","status":"final","version":"1","initial_release_date":"2026-06-17T16:16:56.706Z","current_release_date":"2026-06-17T16:29:32.708Z","revision_history":[{"date":"2026-06-17T16:16:56.706Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"A vulnerability in Cisco ISE and ISE-PIC could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. To exploit this vulnerability, the attacker must have valid administrative credentials.\r\n\r\nThis vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to obtain user-level access to the underlying operating system and then elevate privileges to root. In single-node deployments, successful exploitation of this vulnerability could cause the affected ISE node to become unavailable, resulting in a denial of service (DoS) condition. In that condition, endpoints that have not already authenticated would be unable to access the network until the node is restored.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-20181 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-20181"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-20181"},{"category":"external","summary":"cisco-sa-ise-multi-G5WP8vv","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multi-G5WP8vv"}]},"product_tree":{"branches":[{"category":"vendor","name":"Cisco","branches":[{"category":"product_name","name":"Cisco Identity Services Engine Software","branches":[{"category":"product_version","name":"3.1.0","product":{"name":"Cisco Cisco Identity Services Engine Software 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p1","product":{"name":"Cisco Cisco Identity Services Engine Software 3.2.0 p1","product_id":"CSAFPID-8","product_identification_helper":{"cpe":"cpe:2.3:a:cisco:cisco_identity_services_engine_software:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"3.1.0 p6","product":{"name":"Cisco Cisco Identity Services Engine Software 3.1.0 p6","product_id":"CSAFPID-9","product_identification_helper":{"cpe":"cpe:2.3:a:cisco:cisco_identity_services_engine_software:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"3.2.0 p2","product":{"name":"Cisco Cisco Identity Services Engine Software 3.2.0 p2","product_id":"CSAFPID-10","product_identification_helper":{"cpe":"cpe:2.3:a:cisco:cisco_identity_services_engine_software:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"3.1.0 p7","product":{"name":"Cisco Cisco Identity Services Engine Software 3.1.0 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Identity Connector 3.2.0","product_id":"CSAFPID-45","product_identification_helper":{"cpe":"cpe:2.3:a:cisco:cisco_ise_passive_identity_connector:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"3.1.0","product":{"name":"Cisco Cisco ISE Passive Identity Connector 3.1.0","product_id":"CSAFPID-46","product_identification_helper":{"cpe":"cpe:2.3:a:cisco:cisco_ise_passive_identity_connector:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"3.3.0","product":{"name":"Cisco Cisco ISE Passive Identity Connector 3.3.0","product_id":"CSAFPID-47","product_identification_helper":{"cpe":"cpe:2.3:a:cisco:cisco_ise_passive_identity_connector:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"3.4.0","product":{"name":"Cisco Cisco ISE Passive Identity Connector 3.4.0","product_id":"CSAFPID-48","product_identification_helper":{"cpe":"cpe:2.3:a:cisco:cisco_ise_passive_identity_connector:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"3.5.0","product":{"name":"Cisco Cisco 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To exploit this vulnerability, the attacker must have valid administrative credentials.\r\n\r\nThis vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to obtain user-level access to the underlying operating system and then elevate privileges to root. In single-node deployments, successful exploitation of this vulnerability could cause the affected ISE node to become unavailable, resulting in a denial of service (DoS) condition. In that condition, endpoints that have not already authenticated would be unable to access the network until the node is restored.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4","CSAFPID-5","CSAFPID-6","CSAFPID-7","CSAFPID-8","CSAFPID-9","CSAFPID-10","CSAFPID-11","CSAFPID-12","CSAFPID-13","CSAFPID-14","CSAFPID-15","CSAFPID-16","CSAFPID-17","CSAFPID-18","CSAFPID-19","CSAFPID-20","CSAFPID-21","CSAFPID-22","CSAFPID-23","CSAFPID-24","CSAFPID-25","CSAFPID-26","CSAFPID-27","CSAFPID-28","CSAFPID-29","CSAFPID-30","CSAFPID-31","CSAFPID-32","CSAFPID-33","CSAFPID-34","CSAFPID-35","CSAFPID-36","CSAFPID-37","CSAFPID-38","CSAFPID-39","CSAFPID-40","CSAFPID-41","CSAFPID-42","CSAFPID-43","CSAFPID-44","CSAFPID-45","CSAFPID-46","CSAFPID-47","CSAFPID-48","CSAFPID-49"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","baseScore":9.1,"baseSeverity":"CRITICAL"},"products":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4","CSAFPID-5","CSAFPID-6","CSAFPID-7","CSAFPID-8","CSAFPID-9","CSAFPID-10","CSAFPID-11","CSAFPID-12","CSAFPID-13","CSAFPID-14","CSAFPID-15","CSAFPID-16","CSAFPID-17","CSAFPID-18","CSAFPID-19","CSAFPID-20","CSAFPID-21","CSAFPID-22","CSAFPID-23","CSAFPID-24","CSAFPID-25","CSAFPID-26","CSAFPID-27","CSAFPID-28","CSAFPID-29","CSAFPID-30","CSAFPID-31","CSAFPID-32","CSAFPID-33","CSAFPID-34","CSAFPID-35","CSAFPID-36","CSAFPID-37","CSAFPID-38","CSAFPID-39","CSAFPID-40","CSAFPID-41","CSAFPID-42","CSAFPID-43","CSAFPID-44","CSAFPID-45","CSAFPID-46","CSAFPID-47","CSAFPID-48","CSAFPID-49"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4","CSAFPID-5","CSAFPID-6","CSAFPID-7","CSAFPID-8","CSAFPID-9","CSAFPID-10","CSAFPID-11","CSAFPID-12","CSAFPID-13","CSAFPID-14","CSAFPID-15","CSAFPID-16","CSAFPID-17","CSAFPID-18","CSAFPID-19","CSAFPID-20","CSAFPID-21","CSAFPID-22","CSAFPID-23","CSAFPID-24","CSAFPID-25","CSAFPID-26","CSAFPID-27","CSAFPID-28","CSAFPID-29","CSAFPID-30","CSAFPID-31","CSAFPID-32","CSAFPID-33","CSAFPID-34","CSAFPID-35","CSAFPID-36","CSAFPID-37","CSAFPID-38","CSAFPID-39","CSAFPID-40","CSAFPID-41","CSAFPID-42","CSAFPID-43","CSAFPID-44","CSAFPID-45","CSAFPID-46","CSAFPID-47","CSAFPID-48","CSAFPID-49"]}]}]}