CVE:CVE-2020-1866
CNNVD:CNNVD-202001-792
Huawei S12700等都是中国华为（Huawei）公司的产品。Huawei S12700是一款企业级交换机产品。S2700是一款企业级交换机产品。Huawei S5700是一款企业级交换机产品。
Huawei 多款产品存在安全漏洞。当解析某些精心制作的DHCP报文时，该软件读取超过预期缓冲区的数据。成功利用可能导致某些服务异常。以下产品及版本受到影响：Huawei NIP6800,Huawei S12700,Huawei S2700,Huawei S5700,Huawei S6700，Huawei S7700,Huawei S9700，Huawei Secospace USG6600, Huawei USG9500。
solution:Upgrade huawei nip6800_firmware to a higher version than v500r001c30,v500r001c60spc500,v500r005c00,and avoid the version v500r001c30,v500r001c60spc500,v500r005c00; Upgrade huawei s12700_firmware to a higher version than v200r008c00,and avoid the version v200r008c00; Upgrade huawei s2700_firmware to a higher version than v200r008c00,and avoid the version v200r008c00; Upgrade huawei s5700_firmware to a higher version than v200r008c00,and avoid the version v200r008c00; Upgrade huawei s6700_firmware to a higher version than v200r008c00,and avoid the version v200r008c00; Upgrade huawei s7700_firmware to a higher version than v200r008c00,and avoid the version v200r008c00; Upgrade huawei s9700_firmware to a higher version than v200r008c00,and avoid the version v200r008c00; Upgrade huawei secospace_usg6600_firmware to a higher version than v500r001c30spc200,v500r001c30spc600,v500r001c60spc500,v500r005c00,and avoid the version v500r001c30spc200,v500r001c30spc600,v500r001c60spc500,v500r005c00; Upgrade huawei usg9500_firmware to a higher version than v500r001c30spc300,v500r001c30spc600,v500r001c60spc500,v500r005c00,and avoid the version v500r001c30spc300,v500r001c30spc600,v500r001c60spc500,v500r005c00