Microsoft will be rolling out four security bulletins tomorrow as part of the company's monthly Patch Tuesday update cycle. The number of updates is quite low this month and so is the severity, three of the updates are rated as important and just one has a critical rating.
The critical update addresses a remote code execution security vulnerability in Internet Explorer and all versions of Windows. The second update fixes a denial of service bug in Windows and the .NET framework while the third bulletin is a patch for an elevation of privilege flaw in Windows.
The final update is exclusively for Microsoft Lync Server, it patches a denial of service vulnerability.