Media Player Exploits: New Vectors, New Threats

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| They found that a fully patched Windows XP system running SP2 with IE6 or IE7
| and Windows Media Player 9 will open any page in IE, even if the user's
| default browser is Firefox, Opera or any other installed browser. This means
| that even when running other browsers that are more secure, all a user has to
| do is open a media file to expose the computer to all IE vulnerabilities.
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http://www.linuxinsider.com/rsstory/59506.html