There is an authentication bypass vulnerability in some Huawei servers. A remote attacker with low privilege may bypass the authentication by some special operations. Due to insufficient authentication, an attacker may exploit the vulnerability to get some sensitive information and high-level users' privilege.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-19655
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180530-01-server-en