Microsoft has released high-priority fixes for serious vulnerabilities in its Outlook and Excel applications, but there are <A HREF="http://www.eweek.com/article2/0,1895,2081067,00.asp?kc=EWNAVEMNL101007EOAD">no patches in the January batch</A> for known Microsoft Word flaws that are currently under attack. The software maker released four bulletins with patches for a total of 10 vulnerabilities, most rated "critical," but there is no sign of fixes for the known code-execution Word bugs that have been exploited in zero-day attacks since December 2006.