Several DSL routers from different manufacturers contain a guessable hard-coded password that allows accessing the devices with a hidden administrator account. According to an alert issued Tuesday by the CERT Coordination Center at Carnegie Mellon University, the affected device models are: ASUS DSL-N12E, DIGICOM DG-5524T, Observa Telecom RTA01N, Philippine Long Distance Telephone SpeedSurf 504AN and ZTE ZXV10 W300.