<p>Security hole: The exploit affects Word and Outlook, Microsoft said. Photo: Reuters</p><p>Microsoft has warned that attackers are exploiting a previously unknown security hole in Microsoft Word that can be used to foist malicious code if users open a specially crafted text file, or merely preview the message in Microsoft Outlook.</p><p>"Microsoft is aware of a vulnerability affecting supported versions of Microsoft Word," the company advised in a notice published on Monday.</p><p>"At this time, we are aware of limited, targeted attacks directed at Microsoft Word 2010. The vulnerability could allow remote code execution if a user opens a specially crafted [rich text format] RTF file using an affected version of Microsoft Word, or previews or opens a specially crafted RTF email message in Microsoft Outlook while using Microsoft Word as the email viewer.</p><p><a href="http://www.smh.com.au/it-pro/security-it/microsoft-word-outlook-security-flaw-uncovered-20140324-hvmeq.html">Keep reading...</a></p><p>Read also:</p><p><a href="http://www.pcpro.co.uk/news/security/387781/outlook-email-flaw-hands-computer-to-hackers">Outlook email flaw hands computer to hackers</a> (PC Pro)</p><p><a href="http://www.informationweek.com/messages.asp?piddl_msgthreadid=9320&piddl_msgid=205314&piddl_msgtocontent=yes">Outlook Users Face Zero-Day Attack</a> (InformationWeek (blog))</p><p><a href="http://techday.com/it-brief/news/oh-my-word-microsoft-reveals-zero-day-attacks/181322/">Oh my Word, Microsoft reveals zero-day attacks</a> (Techday NZ)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=d1_-7nczTKLuIiMefAVi6nHq9Nu7M&authuser=0&ned=us">85 additional articles.</a></p>