The MouseJack and KeyJack eavesdropping / injection attack for numerous devices will no doubt persist for a long time. These vulnerabilities allow your unencrypted wireless mouse connection to be used as a keyboard by attackers to inject unwanted keystrokes, possibly taking over your PC. Force pairing allows unauthorized input to your PC.

Linux

Since May 2017, the Linux “fwupd” utility has supported updating Logitech Unifying receivers. Ubuntu 18.04 and Fedora among others will give you a prompt to update your receiver firmware, which is a seamless quick process.

Check firmware version and pair devices to the Logitech Unifying receiver with

apt install solaar

Update thanks to Richard Hughes, a senior developer at Red Hat.

Check firmware version

List all recognized devices, including firmware versions where applicable:

fwupdmgr get-devices

Windows

1. Download/extract Unifying Receiver firmware
2. Install Unifying Receiver software
3. In Logitech Unifying software click Advanced → Update Firmware

Notes

• Ubuntu ≥ 17.10 fwupd
• Richard Hughes blog
• Richard Hughes Twitter