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Algunos de estos errores mostraron evidencia de corrupción de memoria y suponemos que con un esfuerzo suficiente algunos de estos podrían haber sido explotados para ejecutar código arbitrario. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a la versión  68.3, Firefox ESR versiones anteriores a la versión 68.3 y Firefox versiones anteriores a la versión  71."}],"affected":[{"source":"security@mozilla.org","affectedData":[{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"before 68.3","status":"affected"}]},{"vendor":"Mozilla","product":"Firefox ESR","versions":[{"version":"before 68.3","status":"affected"}]},{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"before 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