Juniper Junos OS 12.1X44 before 12.1X44-D50 12.1X46 before 12.1X46-D35 12.1X47 before 12.1X47-D25 12.3 before 12.3R9 12.3X48 before 12.3X48-D10 13.2 before 13.2R7 13.3 before 13.3R5 14.1R3 before 14.1R3-S2 14.1 before 14.1R4 14.2 before 14.2R2 and 15.1 before 15.1R1 allows remote attackers to cause a denial of service (NULL pointer dereference and RDP crash) via a large number of BGP-VPLS advertisements with updated BGP local preference values.