Embedthis Appweb as used in J-Web in Juniper Junos OS before 12.1X44-D60 12.1X46 before 12.1X46-D45 12.1X47 before 12.1X47-D30 12.3 before 12.3R10 12.3X48 before 12.3X48-D20 13.2X51 before 13.2X51-D20 13.3 before 13.3R8 14.1 before 14.1R6 and 14.2 before 14.2R5 allows remote attackers to cause a denial of service (J-Web crash) via unspecified vectors.