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CVE-2024-9399

Estado: ModificadaAlta (7.5)—

Un sitio web configurado para iniciar una sesión WebTransport especialmente manipulada podría bloquear el proceso de Firefox y provocar una condición de denegación de servicio. Esta vulnerabilidad afecta a Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3 y Thunderbird < 131.

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)

Mozilla — FirefoxMozilla — Thunderbird

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2024-9399",
  "cveTags": [],
  "metrics": {
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          "id": "CVE-2024-9399",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
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              "automatable": "yes"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2025-03-14T15:39:09.367406Z"
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
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  "published": "2024-10-01T16:15:10.980",
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      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1907726",
      "tags": [
        "Issue Tracking",
        "Permissions Required"
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      "source": "security@mozilla.org"
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    {
      "url": "https://www.mozilla.org/security/advisories/mfsa2024-46/",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "value": "NVD-CWE-noinfo"
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    },
    {
      "lang": "es",
      "value": "Un sitio web configurado para iniciar una sesión WebTransport especialmente manipulada podría bloquear el proceso de Firefox y provocar una condición de denegación de servicio. Esta vulnerabilidad afecta a Firefox &lt; 131, Firefox ESR &lt; 128.3, Thunderbird &lt; 128.3 y Thunderbird &lt; 131."
    }
  ],
  "lastModified": "2026-06-17T08:24:29.710",
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          "negate": false,
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