TOTOLINK EX1800T cstecgi.cgi setDmzCfg os command injection

A vulnerability classified as critical has been found in TOTOLINK EX1800T 9.1.0cu.2112_B20220316. This affects the function setDmzCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ip leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.