The exploit works for networked printers too. All you have to do is run some program to create a fake printer on a public wifi network, and Windows will automatically install any software you give it. That’s pretty bad.
No Microsoft Windows for me (well…if the installation is Windows, it doesn’t print and has the printer-related services disabled. They’re for updating my TomTom). So I don’t care. And all my CUPS installations are kept up to date by Canonical.