Today Microsoft released a patch for nearly every version of Outlook correcting a security vulnerability that, if not fixed, could grant an attacker unrestricted access to your computer.
What this update does:
This update from Microsoft corrects an issue in Microsoft Office Outlook which, if you were to open an attachment in certain maliciously designed email messages, could allow a remote attacker to gain access to and run malicious software on your computer.
This update applies to you if: you're running Microsoft Outlook 2002 (part of Office XP), Microsoft Office Outlook 2003, or Microsoft Office Outlook 2007.
More Information:
This is a potentially serious issue with Microsoft Office Outlook and you should apply this update. This problem is listed as Important.
Microsoft Office Outlook 2010 is not affected by this issue and no update is required if this is the version of Outlook you have. Outlook Express, Windows Mail, and Windows Live Mail are not affected either.
You may have to restart your computer after installing this update.
Automatically install: via Windows Update.
Manually install: for Outlook 2002, Outlook 2003, or Outlook 2007.
Details from Microsoft: Security Bulletin MS10-045 and Knowledge Base Articles 980371 (Outlook 2002), 980373 (Outlook 2003), and 980376 (Outlook 2007)
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