Command Injection in Tenda AC15 AC1900 goform/setUsbUnload

Successful exploitation allows arbitrary system command execution on the affected router. This can result in full device compromise, unauthorized administrative control, modification of configuration, deployment of malware or botnet payloads, interception or redirection of network traffic, and use of the router as a pivot point against internal network assets.

Restrict access to the router's web management interface to trusted internal hosts only, and disable remote administration from untrusted networks or the internet. Place management interfaces behind network segmentation or ACLs, and monitor for suspicious POST requests to /goform/setUsbUnload, especially those containing shell metacharacters in the deviceName parameter. Where feasible, use firewall rules to prevent external access to the management plane.

Upgrade to a vendor-fixed firmware version if one is available from Tenda. If no patched firmware is available, replace the affected device with a supported model. Review vendor advisories and firmware release notes to confirm whether /goform/setUsbUnload command injection in deviceName has been addressed.