The vulnerability of the fds_sys_passDebugPasswd_ret() function in the libfds.so library of the Zyxel GS1900 series router microprogramming software allows a attacker to escalate their privileges.

The vulnerability of the fdssyspassDebugPasswdret function in the libfds.so library of the Zyxel GS1900 series router microprogramming software exists due to insufficient validation of input data. Exploiting this vulnerability can allow a remote attacker to gain increased privileges...