There is some good news. The software was only used on devices running Windows 7, 8 and 8.1. Windows 10 didn't require the software, so systems using it won't need an update. Also, the vulnerability couldn't be exploited via the internet, only with local access, which limits users' exposure quite a bit.

The patch was released on the 25th. You can get it here along with more information and a list of the affected devices.