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CVE-2022-26122

Estado: ModificadaAlta (8.6)—

An insufficient verification of data authenticity vulnerability [CWE-345] in FortiClient, FortiMail and FortiOS AV engines version 6.2.168 and below and version 6.4.274 and below may allow an attacker to bypass the AV engine via manipulating MIME attachment with junk and pad characters in base64.

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 (3)

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-26122",
  "cveTags": [],
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          "role": "CISA Coordinator",
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              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2024-10-22T20:19:05.845844Z"
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          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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          "vendor": "Fortinet",
          "product": "Fortinet AV Engine, FortiMail, FortiOS, FortiClient",
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              "version": "AV Engine version 6.2.168 and below and version 6.4.274 and below."
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  "published": "2022-11-02T12:15:52.747",
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      "tags": [
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      "source": "psirt@fortinet.com"
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    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-345"
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  "descriptions": [
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      "lang": "en",
      "value": "An insufficient verification of data authenticity vulnerability [CWE-345] in FortiClient, FortiMail and FortiOS AV engines version 6.2.168 and below and version 6.4.274 and below may allow an attacker to bypass the AV engine via manipulating MIME attachment with junk and pad characters in base64."
    },
    {
      "lang": "es",
      "value": "Una verificación insuficiente de la vulnerabilidad de autenticidad de datos [CWE-345] en los motores FortiClient, FortiMail y FortiOS AV versión 6.2.168 e inferiores y la versión 6.4.274 e inferiores puede permitir a un atacante eludir el motor AV mediante la manipulación del archivo adjunto MIME con basura y pad. caracteres en base64."
    }
  ],
  "lastModified": "2026-06-17T04:34:43.650",
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