CVE-2025-25253

Estado: ModificadaAlta (7.5)—

An Improper Validation of Certificate with Host Mismatch vulnerability [CWE-297] in FortiProxy version 7.6.1 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions and FortiOS version 7.6.2 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions ZTNA proxy may allow an unauthenticated attacker in a man-in-the middle position to intercept and tamper with connections to the ZTNA proxy

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 7.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.11%
Percentil entre todas las CVEs puntuadas: 1
Fecha de la puntuación: 6/10/2026

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).

🎯 Técnicas ATT&CK

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

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement75 %
Impacto principalT1557 Adversary-in-the-Middlecredential access · collection80 %
Impacto secundarioT1090.003 Multi-hop Proxycommand and control70 %
Impacto secundarioT1565.002 Transmitted Data Manipulationimpact75 %

CWE-297 (cert validation falla) en proxy ZTNA permite MITM (AV:A, posición adyacente); atacante intercepta/manipula conexiones. Impactos: ser intermediario (T1557), manipular datos en tránsito (T1565.002), redirigir tráfico (T1090.003/proxy).

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

Network Segmentation Filter Network Traffic Encrypt Sensitive Information Disable or Remove Feature or Program Vulnerability Scanning User Training

Tecnologías afectadas (2)

Fortinet — Fortios Fortinet — Fortiproxy

CWE

CWE-297

Referencias

JSON original (NVD)

Mostrar

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          "vendor": "Fortinet",
          "product": "FortiPAM",
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    {
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
      "affectedData": [
        {
          "vendor": "Siemens",
          "product": "RUGGEDCOM APE1808",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "*",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unknown"
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  ],
  "published": "2025-10-14T16:15:36.850",
  "references": [
    {
      "url": "https://fortiguard.fortinet.com/psirt/FG-IR-24-457",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@fortinet.com"
    },
    {
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-864900.html",
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@fortinet.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-297"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An Improper Validation of Certificate with Host Mismatch vulnerability [CWE-297] in FortiProxy version 7.6.1 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions and FortiOS version 7.6.2 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions ZTNA proxy may allow an unauthenticated attacker in a man-in-the middle position to intercept and tamper with connections to the ZTNA proxy"
    }
  ],
  "lastModified": "2026-06-17T09:00:34.107",
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}