CVE:CVE-2016-8781
CNNVD:CNNVD-201612-546
Huawei Secospace USG6300等都是中国华为（Huawei）公司的防火墙。
多款华为防火墙中存在拒绝服务漏洞，该漏洞源于程序没有释放部分内存。攻击者可通过发送大量命令利用该漏洞造成拒绝服务（内存消耗）。以下产品和版本受到影响：Huawei Secospace USG6300 V500R001C20版本，V500R001C20SPC200PWE版本；Secospace USG6500 V500R001C20版本；Secospace USG6600 V500R001C20版本，V500R001C20SPC200PWE版本。
solution:Upgrade huawei secospace_usg6300_firmware to a higher version than v500r001c20,v500r001c20spc200pwe,and avoid the version v500r001c20,v500r001c20spc200pwe; Upgrade huawei secospace_usg6500_firmware to a higher version than v500r001c20,and avoid the version v500r001c20; Upgrade huawei secospace_usg6600_firmware to a higher version than v500r001c20,v500r001c20spc200pwe,and avoid the version v500r001c20,v500r001c20spc200pwe