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Authentication is not required to exploit this vulnerability. The specific flaw exists within the UPnP service, which listens on TCP port 5000 by default. When parsing the uuid request header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-14110."}, {"lang": "es", "value": "Esta vulnerabilidad permite a atacantes adyacentes a la red ejecutar c\u00f3digo arbitrario en las instalaciones afectadas de los routers NETGEAR versi\u00f3n R6400v2 1.0.4.106_10.0.80. No es requerida una autenticaci\u00f3n para explotar esta vulnerabilidad. El fallo espec\u00edfico es presentado en el servicio UPnP, que escucha en el puerto TCP 5000 por defecto. Cuando analiza el encabezado petici\u00f3n uuid, el proceso no comprueba correctamente la longitud de los datos suministrados por el usuario antes de copiarlos en un b\u00fafer de longitud fija en la regi\u00f3n stack de la memoria. Un atacante puede aprovechar esta vulnerabilidad para ejecutar c\u00f3digo en el contexto de root. 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