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CVE-2018-5163

Estado: ModificadaAlta (8.1)—

Si un atacante malicioso ha utilizado otra vulnerabilidad para obtener control total sobre un proceso de contenido, es posible que pueda reemplazar los recursos de datos alternativos almacenados en el JSBC (JavaScript Start-up Bytecode Cache) por otro código JavaScript. Si el proceso padre ejecuta este código reemplazado, el script ejecutado se ejecutaría con los privilegios del proceso padre, escapando del sandbox en los procesos de contenido. Esta vulnerabilidad afecta a las versiones anteriores a la 60 de Firefox.

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)

Canonical — Ubuntu LinuxMozilla — Firefox

CWE

Referencias

JSON original (NVD)

Mostrar
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          "authentication": "NONE",
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  "published": "2018-06-11T21:29:15.517",
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          "value": "CWE-281"
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    }
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  "lastModified": "2026-06-17T01:59:44.950",
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