This months release sees a total of 14 bulletins being released which address 45 CVEs. The first 5 bulletins are rated critical and address vulnerabilities within Internet Explorer, Office, Windows, and VBScript. The remaining 9 bulletins were rated important and cover vulnerabilities within Windows, Exchange, Task Scheduler, Remote Desktop, SChannel, and the Microsoft Graphics component. Most of the vulnerabilities that were patched were use-after-free vulnerabilities along with privilege escalation vulnerabilities. This month, Microsoft has released their monthly set of security bulletins designed to address security vulnerabilities.”]
Source: https://blog.talosintelligence.com/2015/03/microsoft-patch-tuesday-for-march-2015.html