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CVE-2017-5373

Estado: ModificadaCrítica (9.8)—

Se han reportado errores de seguridad de memoria en Firefox 50.1 y Firefox ESR 45.6. Algunos de estos errores mostraron evidencias de corrupción de memoria y se entiende que, con el suficiente esfuerzo, algunos de estos podrían explotarse para ejecutar código arbitrario. La vulnerabilidad afecta a Thunderbird en versiones anteriores a la 45.7, Firefox ESR en versiones anteriores a la 45.7 y Firefox en versiones anteriores a la 51.

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 (6)

Debian — Debian LinuxMozilla — FirefoxMozilla — ThunderbirdRedhat — Enterprise Linux DesktopRedhat — Enterprise Linux ServerRedhat — Enterprise Linux Workstation

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2017-5373",
  "cveTags": [],
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          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "obtainAllPrivilege": false,
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          "confidentialityImpact": "HIGH"
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  "published": "2018-06-11T21:29:02.577",
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      "description": [
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          "value": "CWE-119"
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      "value": "Memory safety bugs were reported in Firefox 50.1 and Firefox ESR 45.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox < 51."
    },
    {
      "lang": "es",
      "value": "Se han reportado errores de seguridad de memoria en Firefox 50.1 y Firefox ESR 45.6. Algunos de estos errores mostraron evidencias de corrupción de memoria y se entiende que, con el suficiente esfuerzo, algunos de estos podrían explotarse para ejecutar código arbitrario. La vulnerabilidad afecta a Thunderbird en versiones anteriores a la 45.7, Firefox ESR en versiones anteriores a la 45.7 y Firefox en versiones anteriores a la 51."
    }
  ],
  "lastModified": "2026-06-17T01:20:20.433",
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