This indicates an attack attempt against a denial of service vulnerability in Microsoft Internet Explorer.
The vulnerability is caused by a NULL pointer dereference that can occur when processing a malformed TriEditDocument ActiveX object with the "URL" property set.
It allows remote attackers to cause a denial of service (application crash) by accessing the URL property of a TriEditDocument.
Microsoft Internet Explorer 6.0 SP1
Microsoft Internet Explorer 6.0
Denial of Service: Remote attackers can crash vulnerable systems.
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