A command injection vulnerability in the function setUpgradeFW of TOTOLINK Technology router T6 V3_Firmware T6_V3_V4.1.5cu.748_B20211015 allows attackers to execute arbitrary commands via a crafted MQTT packet.Referenceshttps://github.com/pjqwudi1/my_vuln/blob/main/totolink/vuln_13/13.md