CVE:CVE-2018-21157
CNNVD:CNNVD-202004-2205
NETGEAR R6700等都是美国网件（NETGEAR）公司的产品。NETGEAR R6700是一款无线路由器。NETGEAR D7800是一款无线调制解调器。NETGEAR R6900是一款无线路由器。
多款NETGEAR产品中存在操作系统命令注入漏洞。该漏洞源于外部输入数据构造操作系统可执行命令过程中，网络系统或产品未正确过滤其中的特殊字符、命令等。攻击者可利用该漏洞执行非法操作系统命令。以下产品及版本受到影响：NETGEAR D7800 1.0.1.28之前版本；R6700 1.0.1.44之前版本；R6900 1.0.1.44之前版本；R7000 1.0.9.28之前版本；R7500v2 1.0.3.24之前版本；R7800 1.0.2.38之前版本；R9000 1.0.2.52之前版本；WNDR4300v2 1.0.0.50之前版本；WNDR4500v3 1.0.0.50之前版本。
solution:Upgrade netgear d7800_firmware to a higher version than 1.0.1.28,and avoid the version (,1.0.1.28); Upgrade netgear r6700_firmware to a higher version than 1.0.1.44,and avoid the version (,1.0.1.44); Upgrade netgear r6900_firmware to a higher version than 1.0.1.44,and avoid the version (,1.0.1.44); Upgrade netgear r7000_firmware to a higher version than 1.0.9.28,and avoid the version (,1.0.9.28); Upgrade netgear r7500_firmware to a higher version than 1.0.3.24,and avoid the version (,1.0.3.24); Upgrade netgear r7800_firmware to a higher version than 1.0.2.38,and avoid the version (,1.0.2.38); Upgrade netgear r9000_firmware to a higher version than 1.0.2.52,and avoid the version (,1.0.2.52); Upgrade netgear wndr4300_firmware to a higher version than 1.0.0.50,and avoid the version (,1.0.0.50); Upgrade netgear wndr4500_firmware to a higher version than 1.0.0.50,and avoid the version (,1.0.0.50)