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CVE-2017-7782

Estado: ModificadaMedia (5.3)—

Error en "WindowsDllDetourPatcher", donde un bloque 4k RWX ("Read/Write/Execute") se asigna, pero nunca se proteje, violando las protecciones DEP. Nota: este ataque solo afecta a sistemas operativos Windows. Otros sistemas operativos no se han visto afectados. La vulnerabilidad afecta a Thunderbird en versiones anteriores a la 52.3, Firefox ESR en versiones anteriores a la 52.3 y Firefox en versiones anteriores a la 55.

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-2017-7782",
  "cveTags": [],
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
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  "affected": [
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      "source": "security@mozilla.org",
      "affectedData": [
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          "vendor": "Mozilla",
          "product": "Thunderbird",
          "versions": [
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              "status": "affected",
              "version": "unspecified",
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  "published": "2018-06-11T21:29:08.920",
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    },
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        "Patch"
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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-269"
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      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An error in the \"WindowsDllDetourPatcher\" where a RWX (\"Read/Write/Execute\") 4k block is allocated but never protected, violating DEP protections. Note: This attack only affects Windows operating systems. Other operating systems are not affected. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55."
    },
    {
      "lang": "es",
      "value": "Error en \"WindowsDllDetourPatcher\", donde un bloque 4k RWX (\"Read/Write/Execute\") se asigna, pero nunca se proteje, violando las protecciones DEP. Nota: este ataque solo afecta a sistemas operativos Windows. Otros sistemas operativos no se han visto afectados. La vulnerabilidad afecta a Thunderbird en versiones anteriores a la 52.3, Firefox ESR en versiones anteriores a la 52.3 y Firefox en versiones anteriores a la 55."
    }
  ],
  "lastModified": "2026-06-17T01:25:11.000",
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