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La funci\u00f3n xlnt::detail::compound_document::read_directory del archivo source/detail/cryptography/compound_document.cpp del componente Encrypted XLSX File Parser se ve afectada. La ejecuci\u00f3n de una manipulaci\u00f3n puede llevar a una lectura fuera de l\u00edmites. El ataque est\u00e1 restringido a la ejecuci\u00f3n local. El exploit ha sido divulgado p\u00fablicamente y puede ser utilizado. Este parche se llama 147. 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