<p>Computerworld - Microsoft today patched 20 vulnerabilities in Word, Office, Windows, SharePoint Server, SQL Server and other products in its portfolio, including a critical bug in the company's popular Word program and another already used to attack the company's own online services.</p><p>Of 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.</p><p>All the security researchers Computerworld contacted Tuesday urged users to install MS12-064, the critical Word update, as soon as possible.</p><p><a href="http://www.computerworld.com/s/article/9232207/Microsoft_patches_20_bugs_including_critical_Word_flaw?taxonomyId=89">Keep reading...</a></p><p>Read also:</p><p><a href="http://www.techrepublic.com/blog/window-on-windows/its-microsoft-patch-tuesday-october-2012/6727">It&#039;s Microsoft Patch Tuesday: October 2012</a> (TechRepublic (blog))</p><p><a href="http://www.crn.com/news/security/240008755/microsoft-patch-tuesday-issues-updates-takes-a-do-over.htm">Microsoft Patch Tuesday Issues Updates, Takes A Do-Over</a> (CRN)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=dluGbTNvwS6OdfMsedRXzfKPN_rLM&ned=us">245 additional articles.</a></p>