Severity Rating: Important
Revision Note: V1.1 (July 29, 2015): Bulletin revised to correct the Desktop Experience footnote in the Affected Software section. The footnote had incorrectly applied to update 3070738 on Windows Server 2008 R2 when it should have applied to update 3067903 on Windows Server 2008 and Windows Server 2008 R2. Also added a footnote for the 3070738 update to clarify that only systems with RDP 8.1 installed are affected. These are informational changes only. Customers who have already successfully applied the updates do not need to take any action. Customers who have not already installed the necessary updates should do so to be protected from the vulnerability it addresses.
Summary: This security update resolves vulnerabilities in Microsoft Windows. The vulnerabilities could allow Remote Code Execution if an attacker first places a specially crafted dynamic link library (DLL) file in the target user’s current working directory and then convinces the user to open an RTF file or to launch a program that is designed to load a trusted DLL file but instead loads the attacker’s specially crafted DLL file. An attacker who successfully exploited the vulnerabilities could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.