<p>Microsoft has patched 20 vulnerabilities in Word, Office, Windows, SharePoint Server, SQL Server and other products in its portfolio, including a critical bug used to attack the company's own online services.</p><p>Of Patch Tuesday's seven security updates, one was labeled "critical," Microsoft's most-severe threat ranking, while the others were pegged as "important," the next-most-serious rating.</p><p>The critical update for Word affected all versions of Microsoft's word processor on Windows, including Word 2003, 2007 and 2010; Word Viewer, the add-on that lets users who don't own Word view and print documents; and Office Web Apps, the free online editions of Word, Excel, PowerPoint and OneNote. Related Articles on Techworld</p><p>All the security researchers we contacted yesterday urged users to install MS12-064, the critical Word update, as soon as possible.</p><p><a href="http://news.techworld.com/security/3404219/microsoft-fixes-critical-word-flaw-in-patch-for-20-vulnerabilities/">Keep reading...</a></p>