Some Huawei products have an insufficient input verification vulnerability. Attackers can exploit this vulnerability in the LAN to cause service abnormal on affected devices.Affected product versions include:HiRouter-CD30-10 version 10.0.2.5;HiRouter-CT31-10 version 10.0.2.20;WS5200-12 version 10.0.1.9;WS5281-10 version 10.0.5.10;WS5800-10 version 10.0.3.25;WS7100-10 version 10.0.5.21;WS7200-10 version 10.0.5.21.