The vulnerability was found by white hat hacker Tavis Ormandy from Google Project Zero. The vulnerability affects Windows 8 servers and above and affects Windows 10 version 1703. Microsoft has not been able to patch the flaw before June 2019. The flaw could be exploited by malicious programs trigger a denial of service condition by interrupting encryption service for other programs. Microsoft Security Response Center (MSRC) told the Google expert that the tech giant will not be able to provide a security patch before next month.”]
Source: https://securityaffairs.co/wordpress/87025/hacking/symcrypt-library-flaw.html