Totolink A830R V5.9c.4729_B20191112 A3100R V4.1.2cu.5050_B20200504 A950RG V4.1.2cu.5161_B20200903 A800R V4.1.2cu.5137_B20200730 A3000RU V5.9c.5185_B20201128 and A810R V4.1.2cu.5182_B20201026 were discovered to contain a command injection vulnerability in the function setUpgradeFW via the FileName parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.