Affected software includes Microsoft Office 2000, Microsoft Office XP, Microsoft Office 2003, Microsoft Excel, Microsoft Office Outlook and Microsoft Office for Mac.
It is likely that this batch of patches will finally provide cover for well-known—and already exploited—vulnerabilities in Microsoft Excel.
On Jan. 15, Microsoft shipped a pre-patch advisory to warn of limited, targeted attacks exploiting a zero-day bug in Microsoft Office Excel 2003 Service Pack 2, Microsoft Office Excel Viewer 2003, Microsoft Office Excel 2002, Microsoft Office Excel 2000 and Microsoft Excel 2004 for Mac.