Microsoft has released important “Patch Tuesday” monthly security updates. These should applied promptly as some of these vulnerabilities have potential to be actively exploited in-the-wild later:

For October, Microsoft released patches to correct 87 CVEs in Microsoft Windows, Office and Office Services and Web Apps, Azure Functions, Open Source Software, Exchange Server, Visual Studio, .NET Framework, Microsoft Dynamics, and the Windows Codecs Library.  Of these 87 patches, 11 are listed as Critical while 75 are listed as Important, and one is listed as Moderate in severity.