CVE:CVE-2018-21142
CNNVD:CNNVD-202004-2034
NETGEAR R7800等都是美国网件（NETGEAR）公司的一款无线路由器。
多款NETGEAR产品中存在安全漏洞。攻击者可利用该漏洞导致拒绝服务。以下产品及版本受到影响：NETGEAR R6100 1.0.1.22之前版本；R7500 1.0.0.122之前版本；R7800 1.0.2.42之前版本；R8900 1.0.3.10之前版本；R9000 1.0.3.10之前版本；WNDR3700v4 1.0.2.96之前版本；WNDR4300 1.0.2.98之前版本；WNDR4300v2 1.0.0.54之前版本；WNDR4500v3 1.0.0.54之前版本；WNR2000v5 1.0.0.64之前版本。
solution:Upgrade netgear r6100_firmware to a higher version than 1.0.1.22,and avoid the version (,1.0.1.22); Upgrade netgear r7500_firmware to a higher version than 1.0.0.122,and avoid the version (,1.0.0.122); Upgrade netgear r7800_firmware to a higher version than 1.0.2.42,and avoid the version (,1.0.2.42); Upgrade netgear r8900_firmware to a higher version than 1.0.3.10,and avoid the version (,1.0.3.10); Upgrade netgear r9000_firmware to a higher version than 1.0.3.10,and avoid the version (,1.0.3.10); Upgrade netgear wndr3700_firmware to a higher version than 1.0.2.96,and avoid the version (,1.0.2.96); Upgrade netgear wndr4300_firmware to a higher version than 1.0.2.98,1.0.0.54,and avoid the version (,1.0.2.98),(,1.0.0.54); Upgrade netgear wndr4500_firmware to a higher version than 1.0.0.54,and avoid the version (,1.0.0.54); Upgrade netgear wnr2000_firmware to a higher version than 1.0.0.64,and avoid the version (,1.0.0.64)