HedEx Earlier than V200R006C00 versions has a dynamic link library (DLL) hijacking vulnerability due to calling the DDL file by accessing a relative path. An attacker could exploit this vulnerability to tamper with the DLL file, leading to DLL hijacking.
http://www.huawei.com/en/psirt/security-advisories/2017/huawei-sa-20170531-01-hedex-en