Technical impact
A vulnerability in the Unitree Go2 firmware allows an attacker to manipulate the volume parameter within the chat_go's gpt_thread.py component. By providing a crafted input, an adversary can execute arbitrary operating‑system commands, a flaw enumerated as CWE‑77 and CWE‑78. This injection can lead to Remote Code Execution against the device.
Affected Systems
Devices manufactured by Unitree Robotics, specifically the Unitree Go2, are affected when running firmware versions up to 1.1.11.4. The issue is corrected in firmware 1.1.11.5 and later. The flaw resides in the chat_go component of the robot's control system.
Risk and Exploitability
The flaw receives a CVSS score of 9.4, indicating critical severity. The EPSS score is 1%, and the vulnerability is not listed in CISA's KEV catalog, but the remote attack vector and lack of requirement for local access make exploitation practical over the network. An attacker who can reach the chat_go interface remotely can inject and execute commands on the robot's host operating system.