Eavesdropping / injection vulnerabilities allow 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. Logitech device firmware has distinct per-OS update procedures.

On Windows, the Unifying software is used to update firmware and pair receivers with mice and keyboards. In Logitech Unifying software click Advanced → Update Firmware

Since May 2017, the Linux “fwupd” utility has supported updating Logitech Unifying receivers. Ubuntu, Fedora and other modern Linux distros will raise a prompt to update Logitech 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.

List all recognized devices, including firmware versions where applicable:

fwupdmgr get-devices

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