It supposedly requires 75 packets which is the default amount of slots in the "process switched" input queue on an interface. There have been packets stuck in the input queue in previous occasions but I suspect this is readily exploitable remotely. Pete ----- Original Message ----- From: Vincent J. Bono To: nanog@merit.edu Sent: Wednesday, July 16, 2003 10:17 PM Subject: New Cisco Vulnerability Hello All, There seem to be rumors going around that there is a new major Cisco vulnerability but only the major backbones are being given fixes right now. Something about packets malformed in a certain manner cause the router to wedge. Can anyne shed any light on or off list? -vb