CVE-2026-20199

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{"affected": [{"affectedData": [{"product": "Cisco ThousandEyes Enterprise Agent", "vendor": "Cisco", "versions": [{"status": "affected", "version": "N/A"}]}], "source": "psirt@cisco.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:cisco:thousandeyes_virtual_appliance:*:*:*:*:*:*:*:*", "matchCriteriaId": "112CE280-AFF4-40C1-B681-F0185605B659", "versionEndExcluding": "0.262.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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."}, {"lang": "es", "value": "Una vulnerabilidad en el manejo de certificados SSL de Cisco ThousandEyes Virtual Appliance podr\u00eda permitir a un atacante remoto autenticado ejecutar comandos en el sistema operativo subyacente como usuario root. Esta vulnerabilidad se debe a una validaci\u00f3n insuficiente de la entrada proporcionada por el usuario. Un atacante autenticado podr\u00eda explotar esta vulnerabilidad al cargar un certificado manipulado en un dispositivo afectado. Un exploit exitoso podr\u00eda permitir al atacante ejecutar c\u00f3digo arbitrario como usuario root en el sistema operativo subyacente. Para explotar esta vulnerabilidad, el atacante debe tener credenciales administrativas v\u00e1lidas."}], "id": "CVE-2026-20199", "lastModified": "2026-07-23T12:10:00.110", "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": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20199", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-05-21T03:55:36.884567Z", "version": "2.0.3"}}]}, "published": "2026-05-20T17:16:20.100", "references": [{"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-tevacert-rce-RMJVEym5"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-74"}], "source": "psirt@cisco.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 92.0, "confidence_source": "matching", "scores": [{"score": 92.0, "source": "matching"}]}, "original": {"product": "Cisco ThousandEyes Enterprise Agent", "source": "cna", "vendor": "Cisco"}, "product": "thousandeyes_enterprise_agent", "vendor": "cisco"}], "created": "2026-05-20T17:30:35.421096+00:00", "title": "Remote Code Execution via Crafted SSL Certificate in Cisco ThousandEyes Virtual Appliance", "updated": "2026-05-21T08:15:06.053423+00:00", "vendors": ["cisco", "cisco$PRODUCT$thousandeyes_enterprise_agent"]}