This is the type of vulnerability that makes me laugh. Anybody using Symantec (Norton) on their email gateway can get hacked BECAUSE they're using the security software.
Here's the vulnerability notes:
http://secunia.com/advisories/18131/
And here's the important parts:
Impact: System access
Where: From remote
Solution Status: Unpatched
Hahaa I just read bugtraq! :P