D-LINK DI-8400 v16.07.26A1 was discovered to contain multiple remote command execution (RCE) vulnerabilities in the msp_info_htm function via the flag and cmd parameters.
https://www.dlink.com/en/security-bulletin/
https://github.com/faqiadegege/IoTVuln/blob/main/DI_8400_msp_info_htm_rce/detail.md