Tenda AC18 v15.03.05.19(6318)cn was discovered to contain a command injection vulnerability via the deviceName parameter in the setUsbUnload function.

An issue was discovered on Tenda AC7 V15.03.06.44CN, AC9 V15.03.05.19(6318)CN, AC10 V15.03.06.23CN, AC15 V15.03.05.19CN, and AC18 V15.03.05.19(6318)CN devices. There is a heap-based buffer overflow vulnerability in the router's web server -- httpd. While processing the 'mac' parameter for a post request, the value is directly used in a strcpy to a variable placed on the heap, which can leak sensitive information or even hijack program control flow.

An issue was discovered on Tenda AC9 V15.03.05.19(6318)CN, AC15 V15.03.05.19CN, and AC18 V15.03.05.19(6318)CN devices. They allow remote code execution via shell metacharacters in the usbName field to the fastcall function with a POST request.