{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-20199", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "state": "PUBLISHED", "assignerShortName": "cisco", "dateReserved": "2025-10-08T11:59:15.397Z", "datePublished": "2026-05-20T16:15:18.647Z", "dateUpdated": "2026-05-20T16:15:18.647Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2026-05-20T16:15:18.647Z"}, "descriptions": [{"lang": "en", "value": "A vulnerability in the SSL certificate handling of Cisco ThousandEyes Virtual Appliance could allow an authenticated, remote attacker to execute commands on the underlying operating system as the root user.\r\n\r This vulnerability is due to insufficient validation of user-supplied input. An authenticated attacker could exploit this vulnerability by uploading a crafted certificate to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system. To exploit this vulnerability, the attacker must have valid administrative credentials."}], "affected": [{"vendor": "Cisco", "product": "Cisco ThousandEyes Enterprise Agent", "versions": [{"version": "N/A", "status": "affected"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')", "type": "cwe", "cweId": "CWE-74"}]}], "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-tevacert-rce-RMJVEym5", "name": "cisco-sa-tevacert-rce-RMJVEym5"}], "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"}}], "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-tevacert-rce-RMJVEym5", "discovery": "INTERNAL", "defects": ["CSCwt77059"]}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability in the SSL certificate handling of Cisco ThousandEyes Virtual Appliance could allow an authenticated, remote attacker to execute commands on the underlying operating system as the root user.\r\n\r This vulnerability is due to insufficient validation of user-supplied input. An authenticated attacker could exploit this vulnerability by uploading a crafted certificate to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system. To exploit this vulnerability, the attacker must have valid administrative credentials."}], "id": "CVE-2026-20199", "lastModified": "2026-05-20T17:30:40.450", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 3.4, "source": "psirt@cisco.com", "type": "Primary"}]}, "published": "2026-05-20T17:16:20.100", "references": [{"source": "psirt@cisco.com", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-tevacert-rce-RMJVEym5"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-74"}], "source": "psirt@cisco.com", "type": "Primary"}]}

{}

{"created": "2026-05-20T17:30:35.421096+00:00", "title": "Remote Code Execution via Crafted SSL Certificate in Cisco ThousandEyes Virtual Appliance", "updated": "2026-05-20T17:30:35.421106+00:00", "vendors": []}