Washington, Dec 10 - Microsoft has released security fixes for Internet Explorer and Exchange Server in its latest series of " Patch Tuesday".

PC World reports that Microsoft has issued seven security bulletins for December, including three critical patches for Windows, Office, Exchange Server, SharePoint Server and Internet Explorer.

Wolfgang Kandek, chief technology officer for IT security firm Qualys said the first bulletins administrators needed to focus on are those that make remote code execution (RCE) possible.

The security patches released will fix the vulnerabilities in the software, thereby guarding it from attackers. (ANI)