Huawei NE40E and CX600 devices with software before V800R007SPH017; PTN 6900-2-M8 devices with software before V800R007SPH019; NE5000E devices with software before V800R006SPH018; and CloudEngine devices 12800 with software before V100R003SPH010 and V100R005 before V100R005SPH006 allow remote attackers with control plane access to cause a denial of service or execute arbitrary code via a crafted packet.