With its February security patches now two weeks away, Microsoft is warning of another critical flaw in its Office software.
This time Excel is the target. Microsoft confirmed late Friday that its spreadsheet software is vulnerable to a new attack, and said that the problem may affect other Office software as well.
The software giant is investigating reports that the flaw is being used by criminals in "very limited," attacks, according to a Microsoft security advisory.
This latest flaw affects Microsoft Office 2000, Microsoft Office XP, Microsoft Office 2003, and Microsoft Office 2004 for Mac.