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CVE-2017-5425

Estado: ModificadaAlta (7.5)—

El sandbox Gecko Media Plugin permite el acceso a archivos locales que coinciden con expresiones regulares concretas. En OS OX, esta coincidencia permite el acceso a algunos datos en subdirectorios de "/private/var" que podría exponer datos personales o temporales. Esto se ha actualizado para no permitir el acceso a "/private/var" y sus subdirectorios. Nota: este problema solo afecta a OS X. Otros sistemas operativos no se han visto afectados. La vulnerabilidad afecta a Firefox en versiones anteriores a la 52 y Thunderbird en versiones anteriores a la 52.

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-2017-5425",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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        "userInteractionRequired": false
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 3.6,
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  "affected": [
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      "affectedData": [
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          "vendor": "Mozilla",
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  "published": "2018-06-11T21:29:05.297",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-200"
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      "lang": "en",
      "value": "The Gecko Media Plugin sandbox allows access to local files that match specific regular expressions. On OS OX, this matching allows access to some data in subdirectories of \"/private/var\" that could expose personal or temporary data. This has been updated to not allow access to \"/private/var\" and its subdirectories. Note: this issue only affects OS X. Other operating systems are not affected. This vulnerability affects Firefox < 52 and Thunderbird < 52."
    },
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      "lang": "es",
      "value": "El sandbox Gecko Media Plugin permite el acceso a archivos locales que coinciden con expresiones regulares concretas. En OS OX, esta coincidencia permite el acceso a algunos datos en subdirectorios de \"/private/var\" que podría exponer datos personales o temporales. Esto se ha actualizado para no permitir el acceso a \"/private/var\" y sus subdirectorios. Nota: este problema solo afecta a OS X. Otros sistemas operativos no se han visto afectados. La vulnerabilidad afecta a Firefox en versiones anteriores a la 52 y Thunderbird en versiones anteriores a la 52."
    }
  ],
  "lastModified": "2026-06-17T01:20:27.503",
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