MS15-101 – Important: Vulnerabilities in .NET Framework Could Allow Elevation of Privilege (3089662) – Version: 1.1

Severity Rating: Important
Revision Note: V1.1 (September 25, 2015): Removed Windows Server Technical Preview 3 from the Affected Software table footnote because it is not affected by the vulnerabilities described in this security bulletin. This is an informational change only. Customers who have already successfully updated their systems do not need to take any action.
Summary: This security update resolves vulnerabilities in Microsoft .NET Framework. The most severe of the vulnerabilities could allow elevation of privilege if a user runs a specially crafted .NET application. However, in all cases, an attacker would have no way to force users to run the application; an attacker would have to convince users to do so.
Source: ms-security