So it appears that Microsoft has discovered a “wormable flaw” that could possibly “fuel a fast-moving malware threat” similar to the WannaCry ransomware attacks from a couple years ago.
Apparently the vulnerability directly affects the Remote Desktop Services component that’s part of all of Microsoft’s client and server OSs so needless to say that it’s very important you get the patch in place as soon as possible!
For more details, check out the Krebsonsecurity.com breakdown here.