Microsoft prepares to tackle 15 flaws in September Patch Tuesday Staff

Microsoft is preparing to issue five security bulletins next week that address 15 vulnerabilities in Windows and Office for its September 2011 Patch Tuesday.

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In its Advance Notification issued today, Microsoft said all of the September Patch Tuesday bulletins are rated “important.” The updates affect Microsoft Office 2010, Microsoft Excel, Microsoft Office Groove 2007 and SharePoint Workspace 2010.

Only one update requires a system restart and, if unpatched, may allow an elevation of privilege in Windows. Two of the bulletins address vulnerabilities that enable remote code execution and impact versions of Microsoft Windows and Microsoft Office.

The updates are scheduled to go live Tuesday, Sept. 13 at 1 p.m. ET.

For Microsoft’s August Patch Tuesday, the software giant issued a total of 13 security bulletins that addressed 22 vulnerabilities. There were two “critical” updates affecting Internet Explorer and the Windows DNS Server.