Hackers are exploiting a vulnerability in Microsoft Word to plant malware on Windows PCs, Microsoft said this week.
The bug in Microsoft Word 2002, 2003, 2007, and 2010 was patched November 9 as part of Microsoft's monthly security update .
Word 2008 and 2011 for the Mac have also been patched, but Microsoft has not yet issued a fix for the same flaw in the older Word 2004. The circulating attacks affect only Windows versions of the suite, however.
According to the Microsoft Malware Protection Center (MMPC), the group that investigates attack code and issues signature updates for the company's antivirus software, the first in-the-wild exploits were detected last week.