CVE-2026-20206

{
  "id": "CVE-2026-20206",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-20206",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-21T03:55:35.778187Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@cisco.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 3.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "Cisco",
          "product": "Cisco ThousandEyes Enterprise Agent",
          "versions": [
            {
              "status": "affected",
              "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"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2026-05-20T17:16:20.243",
  "references": [
    {
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-tebbot-cmdinj-wN3yQ5gn",
      "source": "psirt@cisco.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@cisco.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the BrowserBot component of Cisco ThousandEyes Enterprise Agent could have allowed an authenticated, remote attacker to execute arbitrary commands on Agents on behalf of the BrowserBot synthetics orchestration process. Cisco has addressed this vulnerability in the Cisco ThousandEyes Enterprise Agent, and no customer action is needed.\r\n\r\nThis vulnerability was due to insufficient input validation of command arguments that are supplied by the user. Prior to this vulnerability being addressed, an attacker could have exploited this vulnerability by authenticating to the ThousandEyes SaaS and submitting crafted input into the affected parameter. A successful exploit could have allowed the attacker to execute arbitrary commands within the BrowserBot container as the node user.\r\nTo exploit this vulnerability, the attacker must have valid user credentials for the ThousandEyes SaaS and the ability to manage transaction tests."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el componente BrowserBot de Cisco ThousandEyes Enterprise Agent podría haber permitido a un atacante remoto autenticado ejecutar comandos arbitrarios en los Agents en nombre del proceso de orquestación de sintéticos de BrowserBot. Cisco ha abordado esta vulnerabilidad en el Cisco ThousandEyes Enterprise Agent, y no se requiere ninguna acción por parte del cliente.\n\nEsta vulnerabilidad se debía a una validación de entrada insuficiente de los argumentos de comando que son proporcionados por el usuario. Antes de que esta vulnerabilidad fuera abordada, un atacante podría haber explotado esta vulnerabilidad autenticándose en el ThousandEyes SaaS y enviando una entrada manipulada en el parámetro afectado. Un exploit exitoso podría haber permitido al atacante ejecutar comandos arbitrarios dentro del contenedor BrowserBot como el usuario 'node'.\nPara explotar esta vulnerabilidad, el atacante debe tener credenciales de usuario válidas para el ThousandEyes SaaS y la capacidad de gestionar pruebas de transacciones."
    }
  ],
  "lastModified": "2026-07-23T12:10:00.110",
  "sourceIdentifier": "psirt@cisco.com"
}