An issue in dlink DIR 823x 240802 allows a remote attacker to execute arbitrary code via the target_addr key value and the function 0x41710c
https://www.dlink.com/en/security-bulletin/
https://github.com/xyqer1/Dlink-dir-823x-diag_nslookup-target_addr-CommandInjection
https://gist.github.com/xyqer1/101b7308bdf8618d8be30bd1d09ddd38