{"api_version":"1","generated_at":"2026-09-17T07:49:38+00:00","cve":"CVE-2026-20176","urls":{"html":"https://cve.report/CVE-2026-20176","api":"https://cve.report/api/cve/CVE-2026-20176.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-20176","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-20176"},"summary":{"title":"Cisco Identity Services Engine Remote Code Execution Vulnerability","description":"A vulnerability in Cisco ISE 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 high-privileged 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 system-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 DoS condition. In that condition, endpoints that have not already authenticated would be unable to access the network until the node is restored.","state":"PUBLISHED","assigner":"cisco","published_at":"2026-09-16 20:17:21","updated_at":"2026-09-17 04:17:36"},"problem_types":["CWE-77","CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')"],"metrics":[{"version":"3.1","source":"psirt@cisco.com","type":"Secondary","score":"9.1","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","data":{"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","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"CVSSV3_1","score":"9.1","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-rce-se7bYU57","name":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-rce-se7bYU57","refsource":"psirt@cisco.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-20176","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20176","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.1.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.1.0 p1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.1.0 p3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.1.0 p2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.2.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.1.0 p4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.1.0 p5","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.2.0 p1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.1.0 p6","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.2.0 p2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.1.0 p7","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.3.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.2.0 p3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.2.0 p4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.1.0 p8","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.2.0 p5","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.2.0 p6","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.1.0 p9","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.3 Patch 2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.3 Patch 1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.3 Patch 3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.4.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.2.0 p7","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.3 Patch 4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.4 Patch 1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.1.0 p10","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.3 Patch 5","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.3 Patch 6","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.4 Patch 2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.3 Patch 7","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.4 Patch 3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.5.0","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.4 Patch 4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.3 Patch 8","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.2 Patch 8","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.5 Patch 1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.3 Patch 9","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.2 Patch 9","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.4 Patch 5","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.5 Patch 3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.5 Patch 2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.3 Patch 10","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.3 Patch 11","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.4 Patch 6","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.2 Patch 10","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.1.0 p72","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Identity Services Engine Software","version":"affected 3.1.0 p11","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[{"source":"CNA","title":"","value":"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.","time":"","lang":"en"}],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-20176","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-09-16T00:00:00+00:00","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-09-17T03:57:10.231Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unknown","product":"Cisco Identity Services Engine Software","vendor":"Cisco","versions":[{"status":"affected","version":"3.1.0"},{"status":"affected","version":"3.1.0 p1"},{"status":"affected","version":"3.1.0 p3"},{"status":"affected","version":"3.1.0 p2"},{"status":"affected","version":"3.2.0"},{"status":"affected","version":"3.1.0 p4"},{"status":"affected","version":"3.1.0 p5"},{"status":"affected","version":"3.2.0 p1"},{"status":"affected","version":"3.1.0 p6"},{"status":"affected","version":"3.2.0 p2"},{"status":"affected","version":"3.1.0 p7"},{"status":"affected","version":"3.3.0"},{"status":"affected","version":"3.2.0 p3"},{"status":"affected","version":"3.2.0 p4"},{"status":"affected","version":"3.1.0 p8"},{"status":"affected","version":"3.2.0 p5"},{"status":"affected","version":"3.2.0 p6"},{"status":"affected","version":"3.1.0 p9"},{"status":"affected","version":"3.3 Patch 2"},{"status":"affected","version":"3.3 Patch 1"},{"status":"affected","version":"3.3 Patch 3"},{"status":"affected","version":"3.4.0"},{"status":"affected","version":"3.2.0 p7"},{"status":"affected","version":"3.3 Patch 4"},{"status":"affected","version":"3.4 Patch 1"},{"status":"affected","version":"3.1.0 p10"},{"status":"affected","version":"3.3 Patch 5"},{"status":"affected","version":"3.3 Patch 6"},{"status":"affected","version":"3.4 Patch 2"},{"status":"affected","version":"3.3 Patch 7"},{"status":"affected","version":"3.4 Patch 3"},{"status":"affected","version":"3.5.0"},{"status":"affected","version":"3.4 Patch 4"},{"status":"affected","version":"3.3 Patch 8"},{"status":"affected","version":"3.2 Patch 8"},{"status":"affected","version":"3.5 Patch 1"},{"status":"affected","version":"3.3 Patch 9"},{"status":"affected","version":"3.2 Patch 9"},{"status":"affected","version":"3.4 Patch 5"},{"status":"affected","version":"3.5 Patch 3"},{"status":"affected","version":"3.5 Patch 2"},{"status":"affected","version":"3.3 Patch 10"},{"status":"affected","version":"3.3 Patch 11"},{"status":"affected","version":"3.4 Patch 6"},{"status":"affected","version":"3.2 Patch 10"},{"status":"affected","version":"3.1.0 p72"},{"status":"affected","version":"3.1.0 p11"}]}],"descriptions":[{"lang":"en","value":"A vulnerability in Cisco ISE 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 high-privileged 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 system-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 DoS condition. In that condition, endpoints that have not already authenticated would be unable to access the network until the node is restored."}],"exploits":[{"lang":"en","value":"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"format":"cvssV3_1"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-77","description":"Improper Neutralization of Special Elements used in a Command ('Command Injection')","lang":"en","type":"cwe"}]}],"providerMetadata":{"dateUpdated":"2026-09-16T20:08:36.161Z","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","shortName":"cisco"},"references":[{"name":"cisco-sa-ise-rce-se7bYU57","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-rce-se7bYU57"}],"source":{"advisory":"cisco-sa-ise-rce-se7bYU57","defects":["CSCwu26102"],"discovery":"EXTERNAL"},"title":"Cisco Identity Services Engine Remote Code Execution Vulnerability"}},"cveMetadata":{"assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","assignerShortName":"cisco","cveId":"CVE-2026-20176","datePublished":"2026-09-16T20:08:36.161Z","dateReserved":"2025-10-08T11:59:15.392Z","dateUpdated":"2026-09-17T03:57:10.231Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-16 20:17:21","lastModifiedDate":"2026-09-17 04:17:36","problem_types":["CWE-77","CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')"],"metrics":{"cvssMetricV31":[{"source":"psirt@cisco.com","type":"Secondary","cvssData":{"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","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.3,"impactScore":6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-09-16T00:00:00+00:00","id":"CVE-2026-20176","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"20176","Ordinal":"1","Title":"Cisco Identity Services Engine Remote Code Execution Vulnerabili","CVE":"CVE-2026-20176","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"20176","Ordinal":"1","NoteData":"A vulnerability in Cisco ISE 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 high-privileged 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 system-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 DoS condition. In that condition, endpoints that have not already authenticated would be unable to access the network until the node is restored.","Type":"Description","Title":"Cisco Identity Services Engine Remote Code Execution Vulnerabili"}]}}}