Microsoft plans on Tuesday to release two security bulletins with fixes for flaws in Office and Windows, as part of the monthly patching cycle.

The alert for Office is deemed "critical", Microsoft's highest risk rating, the company said in a notice posted on its Web site on Thursday. The Windows bulletin is rated "important", one notch lower on Microsoft's rating system.
Microsoft’s notice did not reveal which components of Windows or Office are being repaired with Tuesday's patches, but did say that the company plans to release an updated version of the Windows Malicious Software Removal Tool soon.