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CVE-2026-35616

Estado: AnalizadaCrítica (9.8)⚠ Explotación activa

A improper access control vulnerability in Fortinet FortiClientEMS 7.4.5 through 7.4.6 may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

CISA KEV — explotada activamente

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

CVE crítica (CVSS 3.1) sin autenticación (PR:N, UI:N) en aplicación expuesta (T1190). Ejecución de código remoto directa en EMS. Credenciales y manipulación de datos como impactos secundarios.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-35616",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-35616",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "active"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-03T00:00:00+00:00"
        }
      }
    ],
    "cvssMetricV31": [
      {
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        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@fortinet.com",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:fortinet:forticlientems:7.4.6:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:forticlientems:7.4.5:*:*:*:*:*:*:*"
          ],
          "vendor": "Fortinet",
          "product": "FortiClientEMS",
          "versions": [
            {
              "status": "affected",
              "version": "7.4.5",
              "versionType": "semver",
              "lessThanOrEqual": "7.4.6"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-04-04T01:16:39.720",
  "references": [
    {
      "url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-099",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "psirt@fortinet.com"
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-35616",
      "tags": [
        "US Government Resource"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@fortinet.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A improper access control vulnerability in Fortinet FortiClientEMS 7.4.5 through 7.4.6 may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de control de acceso inadecuado en Fortinet FortiClientEMS 7.4.5 hasta 7.4.6 puede permitir a un atacante no autenticado ejecutar código o comandos no autorizados mediante solicitudes manipuladas."
    }
  ],
  "lastModified": "2026-07-24T21:10:00.143",
  "cisaActionDue": "2026-04-09",
  "cisaExploitAdd": "2026-04-06",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:fortinet:forticlientems:7.4.5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7CFAA44F-6B24-4702-93B8-94B703D684D1"
            },
            {
              "criteria": "cpe:2.3:a:fortinet:forticlientems:7.4.6:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4AA9A954-1D6F-4B4D-9670-1DCF14F59737"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@fortinet.com",
  "cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
  "cisaVulnerabilityName": "Fortinet FortiClient EMS Improper Access Control Vulnerability"
}