Yesterday was Patch Tuesday but this month's update cycle from Microsoft wasn't that exciting, there was just one patch that fixes a critical security flaw in PowerPoint:
Vulnerabilities in Microsoft Office PowerPoint Could Allow Remote Code Execution (967340)
This security update resolves a publicly disclosed vulnerability and several privately reported vulnerabilities in Microsoft Office PowerPoint that could allow remote code execution if a user opens a specially crafted PowerPoint file. An attacker who successfully exploited any of these 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. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.