Microsoft Security Advisory 4025685 [1] was released on Tuesday 13 June 2017 and quickly gathered a large amount of attention for fixing a significant number of SMB exploits in supported versions of Windows and for Microsoft's decision, once again, to provide patches for now-unsupported versions of their operating systems.
Article Link: https://blogs.forcepoint.com/security-labs/microsoft-patch-legacy-systems-against-further-shadow-brokers-exploits