D-Link DIR-823G firmware version 1.02B05 has a buffer overflow vulnerability, which originates from the URL field in SetParentsControlInfo.
https://www.dlink.com/en/security-bulletin/
https://github.com/726232111/VulIoT/tree/main/D-Link/DIR823G%20V1.0.2B05/HNAP1/SetParentsControlInfo