A vulnerability was found in Comfast CF-N1-S 2.6.0.1. The affected element is the function sub41AD7C of the file /cgi-bin/mbox-config?method=SET§ion=ntptimezone of the component Web Management. The manipulation of the argument timestr/ntpclientenabled results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used.