There is a weak algorithm vulnerability in some Huawei products. The affected products use weak algorithms by default. Attackers may exploit the vulnerability to cause information leaks.

Some Huawei products have a buffer error vulnerability. An unauthenticated, remote attacker could send specific MPLS Echo Request messages to the target products. Due to insufficient input validation of some parameters in the messages, successful exploit may cause the device to reset.

Huawei S5700 and S6700 have a DoS security vulnerability. Attackers with certain permissions perform specific operations on affected devices. Because the pointer in the program is not processed properly, the vulnerability can be exploited to cause the device to be abnormal.