Argument injection vulnerability in Microsoft Outlook 2003 SP1 allows user-assisted remote attackers to modify command line arguments to an invoked mail client…

Argument injection vulnerability in Microsoft Outlook 2003 SP1 allows user-assisted remote attackers to modify command line arguments to an invoked mail client via " (double quote) characters in a mailto: scheme handler, as demonstrated by launching Microsoft Outlook with an arbitrary filename as an attachment. NOTE: it is not clear whether this issue is implementation-specific or a problem in the Microsoft API.