Huawei Ngfw Module is a firewall module from Huawei, China.Huawei IPS Module is an Intrusion Prevention System (IPS) module from Huawei, China.Huawei S5700, Huawei S12700, Huawei S2700 and Huawei The Huawei S5700, Huawei S12700, Huawei S2700 and Huawei S6700 are all enterprise-class switches from Huawei, a Chinese company. Several Huawei products have an out-of-bounds write vulnerability, which can be exploited by attackers to cause a denial of service.