TOTOLINK CA600-PoE V5.3c.6665_B20180820 was found to contain a command injection vulnerability in the recvUpgradeNewFw function via the fwUrl parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.
https://github.com/Summermu/VulnForIoT/tree/main/Totolink_CA600-PoE/recvUpgradeNewFw/readme.md