This host is missing an important security update according to Microsoft Security Advisory 2960358.
Successful exploitation could allow an attacker to perform man-in-the-middle attacks and recover plaintext from encrypted sessions. Impact Level: Application
Run Windows Update and update the listed hotfixes or download and update mentioned hotfixes in the advisory from the below link, For updates refer to https://technet.microsoft.com/en-us/library/security/2960358.aspx
The flaw is due to the RC4 encryption algorithm is used in Transport Layer Security (TLS).
Microsoft .NET Framework 3.5, 3.5.1, 4.0 and 4.5 and 4.5.X
Get the vulnerable file version and check appropriate patch is applied or not.