Multiple heap-based buffer overflows in the eSap software platform in Huawei Campus S9300 S7700 S9700 S5300 S5700 S6300 and S6700 series switches; AR150 AR160 AR200 AR1200 AR2200 AR3200 AR530 NetEngine16EX SRG1300 SRG2300 and SRG3300 series routers; and WLAN AC6005 AC6605 and ACU2 access controllers allow remote attackers to cause a denial of service (device restart) via a crafted length field in a packet.