It has been discovered that Juniper's M- and T-Series routers suffer from a flaw whereby they are affected by the vulnerability in Junos 6.x, which makes them vulnerable to denial-of service attacks. Such DoS attacks could allow a malicious cracker to access to the router and crucial areas of the network, and companies and individuals using such hardware should seek assistance from Juniper and even consider upgrade their routers to avoid security related problems.

According to vulnerability researcher Secunia, the vulnerability has "moderately critical" implications for networks. In a Web site advisory, Secunia said that the vulnerability was caused by an unspecified error in processing certain network packets. It recommended that people upgrade the operating systems on their routers.