A vulnerability exists for Gemtek CPE7000 model ID WLTCS-106 exposing Iperf tool to unauthenticated users. Injecting a command in the perf_measure_server_ip parameter, an attacker can execute arbitrary commands. Since the service runs as root, the remote command execution has the same administrative privileges. The remote shell is obtained uploading the payload and executing it. A reverse shell is preferred rather then a bind one, since firewall won’t allow (by default) incoming connections. Tested on Hardware version V02A and Firmware version 01.01.02.082.