{"id":"CVE-2026-76460","aliases":["EUVD-2026-81122","GHSA-25wc-3w28-q6vw"],"status":"published","title":"Cisco Identity Services Engine Authentication Bypass Vulnerability","description":"A vulnerability in an API of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass authentication.\r\n\r\nThis vulnerability is due to insufficient authentication control on an API endpoint. An attacker could exploit this vulnerability by sending a crafted request to an affected API endpoint. A successful exploit could allow the attacker to gain unauthorized access to the affected device by bypassing the web-based management interface.","severity":{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.75599,"percentile":0.99527,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-648"],"published":"2026-09-16T20:12:02Z","modified":"2026-10-07T19:17:40Z","kev":{"date_added":"2026-09-16","due_date":"2026-09-19","required_action":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2026-09-16"},{"source":"kev","since":"2026-09-16"}],"exploits":[{"source":"pocgithub","id":"S3v3n-JG/CVE-2026-76460","title":"S3v3n-JG/CVE-2026-76460","date":"2026-09-17","url":"https://github.com/S3v3n-JG/CVE-2026-76460"},{"source":"nuclei","id":"CVE-2026-76460","title":"Cisco Identity Services Engine - ise-kong API Gateway Authentication Bypass","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-76460.yaml"}],"products":[{"vendor":"cisco","product":"cisco identity services engine software"},{"vendor":"cisco","product":"cisco ise passive identity connector"},{"vendor":"cisco","product":"identity services engine"},{"vendor":"cisco","product":"identity_services_engine"},{"vendor":"cisco","product":"identity_services_engine_passive_identity_connector"}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ISE-ABP-VNSW7Tn5","tags":["Mitigation","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76460","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76460"},{"url":"https://github.com/advisories/GHSA-25wc-3w28-q6vw"}],"sources":{"cve":[{"id":"CVE-2026-76460","title":"Cisco Identity Services Engine Authentication Bypass Vulnerability","description":"A vulnerability in an API of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass authentication.\r\n\r\nThis vulnerability is due to insufficient authentication control on an API endpoint. An attacker could exploit this vulnerability by sending a crafted request to an affected API endpoint. A successful exploit could allow the attacker to gain unauthorized access to the affected device by bypassing the web-based management interface.","status":"published","published":"2026-09-16T20:12:02.131Z","modified":"2026-10-07T18:27:47.551Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-648"],"updated_at":"2026-11-02T13:46:21.568011Z"}],"euvd":[{"id":"EUVD-2026-81122","description":"A vulnerability in an API of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass authentication.\r\n\r\nThis vulnerability is due to insufficient authentication control on an API endpoint. An attacker could exploit this vulnerability by sending a crafted request to an affected API endpoint. A successful exploit could allow the attacker to gain unauthorized access to the affected device by bypassing the web-based management interface.","status":"published","published":"2026-09-16T20:12:02Z","modified":"2026-10-07T18:27:47Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"exploited_since":"2026-09-16","updated_at":"2026-11-02T17:27:34.353796Z"}],"ghsa":[{"id":"GHSA-25wc-3w28-q6vw","title":"A vulnerability in an API of Cisco Identity Services Engine (ISE) could allow an unauthenticated,...","description":"A vulnerability in an API of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass authentication.\n\nThis vulnerability is due to insufficient authentication control on an API endpoint. An attacker could exploit this vulnerability by sending a crafted request to an affected API endpoint. A successful exploit could allow the attacker to gain unauthorized access to the affected device by bypassing the web-based management interface.","status":"published","published":"2026-09-16T21:32:52Z","modified":"2026-09-16T21:33:00Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-648"],"updated_at":"2026-11-02T15:12:02.762055Z"}],"kev":[{"id":"CVE-2026-76460","title":"Cisco Identity Services Engine Incorrect Use of Privileged APIs Vulnerability","description":"Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) contain an incorrect use of privileged APIs vulnerability that could allow an unauthenticated, remote attacker to gain unauthorized access to the affected device by bypassing the web-based management interface.","cwes":["CWE-648"],"kev":{"date_added":"2026-09-16","due_date":"2026-09-19","required_action":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:15.999436Z"}],"nvd":[{"id":"CVE-2026-76460","description":"A vulnerability in an API of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass authentication.\r\n\r\nThis vulnerability is due to insufficient authentication control on an API endpoint. An attacker could exploit this vulnerability by sending a crafted request to an affected API endpoint. A successful exploit could allow the attacker to gain unauthorized access to the affected device by bypassing the web-based management interface.","status":"published","published":"2026-09-16T21:17:21.43Z","modified":"2026-10-07T19:17:40.417Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-648"],"updated_at":"2026-11-02T14:12:49.013904Z"}]}}