An authorized RCE vulnerability exists in the DrayTek Vigor2960 router version 1.4.4, where an attacker can place a malicious command into the table parameter of the doPPPoE function in the cgi-bin/mainfunction.cgi route, and finally the command is executed by the system function.
https://github.com/Giles-one/Vigor2960Crack
https://gist.github.com/Giles-one/6425e97dcd1ec97a722a1e20da25fad7