CVE-2026-71926: DrayTek VigorSwitch Multiple Models OS Command Injection via setDevice
Multiple DrayTek VigorSwitch models contain a command injection vulnerability in the setDevice function. The vulnerability is caused by insufficient sanitization of the username, password, and location fields before command execution. A remote attacker can trigger this vulnerability via crafted input to execute arbitrary commands with root privileges. Exploitation requires valid administrative credentials for the device's web management interface.
Event History
Frequently Asked Questions
What access does an attacker need to exploit this issue?
The attacker must have valid administrative credentials for the device's web management interface. Exploitation can then be performed remotely by submitting crafted values in the username, password, or location fields.
What level of access could successful exploitation provide?
Successful exploitation allows arbitrary operating-system commands to be executed with root privileges on the affected switch.