Microsoft Windows 10 hit by ‘severe’ vulnerability that could affect up to one billion users
From what I have read it looks like a patch is in KB4528760 ( OS build 18362.592 for Windows 10, version 1903, Windows Server version 1903 and OS build 18363.592 for Windows 10, version 1909 )
@dodicat: KB4532938 is re .NET for Windows 10, version 1909 so it seems you have version 1909 and you now have build 18362.592 covering the NSA revelation; MS issued the patch the same day the NSA contacted them.
If you haven't got these updates yet force Windows to check via 'Check for updates' in the 'Windows Update' page in Settings.
If nothing else this tells us to keep Windows 10 'bang up to date'.
The 'flaw' was in crypt32.dll - WOW! Mine was 'created/modified' 15 January 2020, 07:14:53.