The vulnerability of HID Mercury programmable logic controllers’ microprogramming software arises from the lack of measures taken to neutralize special elements used in the operating system commands. This allows attackers to execute arbitrary shell commands.

The vulnerability of HID Mercury programmable logic controllers exists due to the lack of measures taken to neutralize special elements used in the operating system’s commands. Exploiting this vulnerability allows a malicious actor to remotely execute arbitrary shell commands by sending a special...