KLA11047
Multiple vulnerabilities in Microsoft Development Tools

Multiple serious vulnerabilities have been found in Microsoft Development Tools. Malicious users can exploit these vulnerabilities to obtain sensitive information and execute arbitrary code.

Skype for Business 2016
Microsoft Windows 7 Service Pack 1
Microsoft Windows RT 8.1
Microsoft Windows 8.1
Microsoft Windows 10
Microsoft Windows Server 2008 Service Pack 2
Microsoft Windows Server 2008 R2 Service Pack 1
Microsoft Windows Server 2012
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2016
Microsoft Office 2007 Service Pack 3
Microsoft Office 2010 Service Pack 2
Microsoft Lync 2013 Service Pack 1 

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

4023307

The following public exploits exists for this vulnerability:

https://www.exploit-db.com/exploits/42234

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.