MAX PRESENCE V100R001C00, TP3106 V100R002C00, TP3206 V100R002C00 have an a memory leak vulnerability in H323 protocol. An attacker logs in to the system as a user and send crafted packets to the affected products. Due to insufficient verification of the packets, successful exploit could cause a memory leak and eventual denial of service (DoS) condition.
http://www.securityfocus.com/bid/101952
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20170927-01-h323-en