{"id":"CVE-2026-20350","state":"PUBLISHED","title":"Cisco ThousandEyes Virtual Appliance Authenticated Web Interface Command Injection Vulnerability","description":"A vulnerability in the web-based management interface of Cisco ThousandEyes Virtual Appliance could allow an authenticated, remote attacker to inject arbitrary operating system commands.\r\n\r\nThis vulnerability is due to improper validation of user-supplied input to the web-based management interface. An attacker could exploit this vulnerability by saving configuration details that contain malicious values. A successful exploit could allow the attacker to execute arbitrary operating system commands with root privileges. To exploit this vulnerability, the attacker must have valid administrative credentials.","publishedAt":"2026-09-16T20:10:16.925Z","updatedAt":"2026-09-21T12:50:01.504Z","severity":{"score":4.7,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L","source":"cisco"},"assigner":"cisco","products":["Cisco Cisco ThousandEyes Enterprise Agent"],"affected":[{"vendor":"Cisco","product":"Cisco ThousandEyes Enterprise Agent","defaultStatus":"unknown","versions":[{"version":"Agent 5.0","status":"affected"},{"version":"Agent 4.4.4","status":"affected"},{"version":"Agent 4.4.3","status":"affected"},{"version":"Agent 4.4.2","status":"affected"},{"version":"Agent 4.2","status":"affected"},{"version":"Agent 4.1","status":"affected"},{"version":"Agent 4.0","status":"affected"},{"version":"Agent 5.1","status":"affected"},{"version":"Agent 5.1.2","status":"affected"},{"version":"Agent 5.1.3","status":"affected"},{"version":"Agent 5.2.0","status":"affected"}]}],"references":["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-teva-os-command-W4GAO6jp"],"weaknesses":["CWE-78"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/20xxx/CVE-2026-20350.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20350","state":"PUBLISHED","datePublished":"2026-09-16T20:10:16.925Z","dateUpdated":"2026-09-21T12:50:01.504Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2025-10-08T11:59:15.414Z"},"containers":{"cna":{"title":"Cisco ThousandEyes Virtual Appliance Authenticated Web Interface Command Injection Vulnerability","descriptions":[{"lang":"en","value":"A vulnerability in the web-based management interface of Cisco ThousandEyes Virtual Appliance could allow an authenticated, remote attacker to inject arbitrary operating system commands.\r\n\r\nThis vulnerability is due to improper validation of user-supplied input to the web-based management interface. An attacker could exploit this vulnerability by saving configuration details that contain malicious values. A successful exploit could allow the attacker to execute arbitrary operating system commands with root privileges. To exploit this vulnerability, the attacker must have valid administrative credentials."}],"affected":[{"vendor":"Cisco","product":"Cisco ThousandEyes Enterprise Agent","defaultStatus":"unknown","versions":[{"version":"Agent 5.0","status":"affected"},{"version":"Agent 4.4.4","status":"affected"},{"version":"Agent 4.4.3","status":"affected"},{"version":"Agent 4.4.2","status":"affected"},{"version":"Agent 4.2","status":"affected"},{"version":"Agent 4.1","status":"affected"},{"version":"Agent 4.0","status":"affected"},{"version":"Agent 5.1","status":"affected"},{"version":"Agent 5.1.2","status":"affected"},{"version":"Agent 5.1.3","status":"affected"},{"version":"Agent 5.2.0","status":"affected"}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-teva-os-command-W4GAO6jp","name":"cisco-sa-teva-os-command-W4GAO6jp"}],"metrics":[{"format":"cvssV3_1","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L","baseScore":4.7,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"LOW"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-78","lang":"en","description":"Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","type":"cwe"}]}],"providerMetadata":{"shortName":"cisco","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateUpdated":"2026-09-16T20:10:16.925Z"},"exploits":[{"lang":"en","value":"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}],"source":{"advisory":"cisco-sa-teva-os-command-W4GAO6jp","discovery":"EXTERNAL","defects":["CSCwu72728"]}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-18T03:56:09.748261Z","id":"CVE-2026-20350","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-21T12:50:01.504Z"}}]}}}