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CVE-2019-17656

Estado: ModificadaMedia (6.5)—

A Stack-based Buffer Overflow vulnerability in the HTTPD daemon of FortiOS 6.0.10 and below, 6.2.2 and below and FortiProxy 1.0.x, 1.1.x, 1.2.9 and below, 2.0.0 and below may allow an authenticated remote attacker to crash the service by sending a malformed PUT request to the server. Fortinet is not aware of any successful exploitation of this vulnerability that would lead to code execution.

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).

Tecnologías afectadas (2)

Fortinet — FortiosFortinet — Fortiproxy

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2019-17656",
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
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              "automatable": "no"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2024-10-23T13:58:54.865929Z"
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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    "cvssMetricV31": [
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        "type": "Secondary",
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        "cvssData": {
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  "affected": [
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  "published": "2021-04-12T15:15:13.827",
  "references": [
    {
      "url": "https://fortiguard.com/advisory/FG-IR-19-248",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@fortinet.com"
    },
    {
      "url": "https://fortiguard.com/advisory/FG-IR-21-007",
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      "source": "psirt@fortinet.com"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A Stack-based Buffer Overflow vulnerability in the HTTPD daemon of FortiOS 6.0.10 and below, 6.2.2 and below and FortiProxy 1.0.x, 1.1.x, 1.2.9 and below, 2.0.0 and below may allow an authenticated remote attacker to crash the service by sending a malformed PUT request to the server. Fortinet is not aware of any successful exploitation of this vulnerability that would lead to code execution."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de desbordamiento de búfer en la región stack de la memoria en el demonio HTTPD de FortiOS versiones 6.0.10 y por debajo, versiones 6.2.2 y por debajo y FortiProxy versiones 1.0.x, 1.1.x, 1.2.9 y por debajo, versiones 2.0.0 y por debajo, puede permitir a un atacante remoto autenticado bloquear el servicio mediante el envío de una petición PUT malformada hacia el servidor. Fortinet no tiene conocimiento de ninguna explotación con éxito de esta vulnerabilidad que podría conllevar a una ejecución de código"
    }
  ],
  "lastModified": "2026-06-17T02:24:21.617",
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