Microsoft has release quite a bit of security updates today so do certainly check your systems for updates. Source: https://portal.msrc.microsoft.com/en-us/security-guidance

The list as follows:

Critical Security Updates
============================

Critical	Adobe Flash Player
Critical	Internet Explorer 9
Critical	Internet Explorer 10
Critical	Internet Explorer 11
Critical	Microsoft Edge
Critical	Microsoft Office 2007 Service Pack 3
Critical	Microsoft Office 2010 Service Pack 2 (32-bit editions)
Critical	Microsoft Office 2010 Service Pack 2 (64-bit editions)
Critical	Microsoft Office 2013 RT Service Pack 1
Critical	Microsoft Office 2013 Service Pack 1 (32-bit editions)
Critical	Microsoft Office 2013 Service Pack 1 (64-bit editions)
Critical	Microsoft Office 2016 (32-bit edition)
Critical	Microsoft Office 2016 (64-bit edition)
Critical	Microsoft Office 2016 Click-to-Run (C2R) for 32-bit editions
Critical	Microsoft Office 2016 Click-to-Run (C2R) for 64-bit editions
Critical	Microsoft Office Compatibility Pack Service Pack 3
Critical	Microsoft Office Web Apps 2010 Service Pack 2
Critical	Microsoft Office Web Apps 2013 Service Pack 1
Critical	Microsoft Office Word Viewer
Critical	Microsoft Excel 2013 RT Service Pack 1
Critical	Microsoft Outlook 2007 Service Pack 3
Critical	Microsoft Outlook 2010 Service Pack 2 (32-bit editions)
Critical	Microsoft Outlook 2010 Service Pack 2 (64-bit editions)
Critical	Microsoft Outlook 2013 RT Service Pack 1
Critical	Microsoft Outlook 2013 Service Pack 1 (32-bit editions)
Critical	Microsoft Outlook 2013 Service Pack 1 (64-bit editions)
Critical	Microsoft Outlook 2016 (32-bit edition)
Critical	Microsoft Outlook 2016 (64-bit edition)
Critical	Microsoft Outlook 2016 for Mac
Critical	Microsoft PowerPoint 2007 Service Pack 3
Critical	Microsoft PowerPoint 2013 RT Service Pack 1
Critical	Microsoft PowerPoint 2016 for Mac
Critical	Microsoft PowerPoint for Mac 2011
Critical	Microsoft Project Server 2013 Service Pack 1
Critical	Microsoft SharePoint Enterprise Server 2013 Service Pack 1
Critical	Microsoft SharePoint Enterprise Server 2016
Critical	Microsoft SharePoint Server 2007 Service Pack 3 (32-bit editions)
Critical	Microsoft SharePoint Server 2013 Service Pack 1
Critical	Microsoft Word 2007 Service Pack 3
Critical	Microsoft Word 2010 Service Pack 2 (32-bit editions)
Critical	Microsoft Word 2010 Service Pack 2 (64-bit editions)
Critical	Microsoft Word 2013 RT Service Pack 1
Critical	Microsoft Word 2013 Service Pack 1 (32-bit editions)
Critical	Microsoft Word 2013 Service Pack 1 (64-bit editions)
Critical	Microsoft Word 2016 (32-bit edition)
Critical	Microsoft Word 2016 (64-bit edition)
Critical	Microsoft Word 2016 for Mac
Critical	Microsoft Word for Mac 2011
Critical	Skype for Business 2016 (32-bit)
Critical	Skype for Business 2016 (64-bit)
Critical	Microsoft Lync 2013 Service Pack 1 (32-bit)
Critical	Microsoft Lync 2013 Service Pack 1 (64-bit)
Critical	Microsoft Silverlight 5 Developer Runtime when installed on 
Microsoft Windows (32-bit)
Critical	Microsoft Silverlight 5 Developer Runtime when installed on 
Microsoft Windows (x64-based)
Critical	Microsoft Silverlight 5 when installed on Microsoft Windows (32-
bit)
Critical	Microsoft Silverlight 5 when installed on Microsoft Windows (x64-
based)
Critical	Windows 7 for 32-bit Systems Service Pack 1
Critical	Windows 7 for x64-based Systems Service Pack 1
Critical	Windows 8.1 for 32-bit systems
Critical	Windows 8.1 for x64-based systems
Critical	Windows RT 8.1
Critical	Windows 10 for 32-bit Systems
Critical	Windows 10 for x64-based Systems
Critical	Windows 10 Version 1511 for 32-bit Systems
Critical	Windows 10 Version 1511 for x64-based Systems
Critical	Windows 10 Version 1607 for 32-bit Systems
Critical	Windows 10 Version 1607 for x64-based Systems
Critical	Windows Server 2008 for 32-bit Systems Service Pack 2
Critical	Windows Server 2008 for 32-bit Systems Service Pack 2
            (Server Core installation)
Critical	Windows Server 2008 for Itanium-Based Systems Service
            Pack 2
Critical	Windows Server 2008 for x64-based Systems Service
            Pack 2
Critical	Windows Server 2008 for x64-based Systems Service
            Pack 2 (Server Core installation)
Critical	Windows Server 2008 R2 for Itanium-Based Systems
            Service Pack 1
Critical	Windows Server 2008 R2 for x64-based Systems Service
            Pack 1
Critical	Windows Server 2008 R2 for x64-based Systems Service
            Pack 1 (Server Core installation)
Critical	Windows Server 2012
Critical	Windows Server 2012 (Server Core installation)
Critical	Windows Server 2012 R2
Critical	Windows Server 2012 R2 (Server Core installation)
Critical	Windows Server 2016
Critical	Windows Server 2016 (Server Core installation)