{"id":"CVE-2026-76423","title":"A vulnerability in the REST API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to gain administrative access to an affected device.\r\n\r\nThis vulnerability is due to the REST API web service being exposed wi…","summary":"A vulnerability in the REST API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to gain administrative access to an affected device.\r\n\r\nThis vulnerability is due to the REST API web service being exposed wi…","severity":"critical","cvss":10,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L","cwe":["CWE-290"],"vendor":"Cisco","product":"Cisco Identity Services Engine Software","affected":["identity_services_engine_software 3.1.0","identity_services_engine_software 3.1.0 p1","identity_services_engine_software 3.1.0 p3","identity_services_engine_software 3.1.0 p2","identity_services_engine_software 3.2.0","identity_services_engine_software 3.1.0 p4","identity_services_engine_software 3.1.0 p5","identity_services_engine_software 3.2.0 p1","identity_services_engine_software 3.1.0 p6","identity_services_engine_software 3.2.0 p2","identity_services_engine_software 3.1.0 p7","identity_services_engine_software 3.3.0","identity_services_engine_software 3.2.0 p3","identity_services_engine_software 3.2.0 p4","identity_services_engine_software 3.1.0 p8","identity_services_engine_software 3.2.0 p5","identity_services_engine_software 3.2.0 p6","identity_services_engine_software 3.1.0 p9","identity_services_engine_software 3.3 Patch 2","identity_services_engine_software 3.3 Patch 1","identity_services_engine_software 3.3 Patch 3","identity_services_engine_software 3.4.0","identity_services_engine_software 3.2.0 p7","identity_services_engine_software 3.3 Patch 4","identity_services_engine_software 3.4 Patch 1","identity_services_engine_software 3.1.0 p10","identity_services_engine_software 3.3 Patch 5","identity_services_engine_software 3.3 Patch 6","identity_services_engine_software 3.4 Patch 2","identity_services_engine_software 3.3 Patch 7","identity_services_engine_software 3.4 Patch 3","identity_services_engine_software 3.5.0","identity_services_engine_software 3.4 Patch 4","identity_services_engine_software 3.3 Patch 8","identity_services_engine_software 3.2 Patch 8","identity_services_engine_software 3.5 Patch 1","identity_services_engine_software 3.3 Patch 9","identity_services_engine_software 3.2 Patch 9","identity_services_engine_software 3.4 Patch 5","identity_services_engine_software 3.5 Patch 3","identity_services_engine_software 3.5 Patch 2","identity_services_engine_software 3.3 Patch 10","identity_services_engine_software 3.3 Patch 11","identity_services_engine_software 3.4 Patch 6","identity_services_engine_software 3.2 Patch 10","identity_services_engine_software 3.1.0 p72","identity_services_engine_software 3.1.0 p11","identity_services_engine_software 3.3 Patch 12","ise_passive_identity_connector 3.2.0","ise_passive_identity_connector 3.1.0"],"published":"2026-09-16","updated":"2026-09-17","sourceUpdated":"2026-09-17T12:18:26.607","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-76423","references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multi-hrP9jQSQ","label":"psirt@cisco.com"},{"url":"https://software.cisco.com"}],"tags":["nvd","cve.org","csaf","vendor-advisory","cisco"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-17T03:57:13.169927Z"},"ingestedAt":"2026-09-16T16:37:52.199Z","epss":0.00547,"epssPercentile":0.44727,"slug":"CVE-2026-76423","body":"## Overview\n\nA vulnerability in the REST API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to gain administrative access to an affected device.\r\n\r\nThis vulnerability is due to the REST API web service being exposed with insufficient authorization checks. An attacker could exploit this vulnerability by sending a crafted HTTP request to the exposed REST API port. A successful exploit could allow the attacker to read and modify ISE configuration and identity data with administrative privileges.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **cisco-sa-ise-multi-hrP9jQSQ** · Cisco · affected: Cisco ISE Passive Identity Connector (4 versions), Cisco Identity Services Engine Software (47 versions) · updated 2026-09-16 · [advisory](https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multi-hrP9jQSQ)","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":55,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}