CVE:CVE-2018-21205
CNNVD:CNNVD-202004-2275
NETGEAR D7800等都是美国网件（NETGEAR）公司的产品。NETGEAR D7800是一款无线调制解调器。NETGEAR EX2700是一款无线网络信号扩展器。NETGEAR R6100是一款无线路由器。
多款NETGEAR产品中存在缓冲区错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。以下产品及版本受到影响：NETGEAR D7800 1.0.1.30之前版本；EX2700 1.0.1.28之前版本；R6100 1.0.1.20之前版本；R7500 1.0.0.118之前版本；R7500v2 1.0.3.24之前版本；R7800 1.0.2.40之前版本；R9000 1.0.2.52之前版本；WN2000RPTv3 1.0.1.20之前版本；WN3000RPv3 1.0.2.50之前版本；WN3100RPv2 1.0.0.56之前版本；WNDR3700v4 1.0.2.96之前版本；WNDR4300 1.0.2.98之前版本；WNDR4300v2 1.0.0.50之前版本；WNDR4500v3 1.0.0.50之前版本。
solution:Upgrade netgear d7800_firmware to a higher version than 1.0.1.30,and avoid the version (,1.0.1.30); Upgrade netgear ex2700_firmware to a higher version than 1.0.1.28,and avoid the version (,1.0.1.28); Upgrade netgear r6100_firmware to a higher version than 1.0.1.20,and avoid the version (,1.0.1.20); Upgrade netgear r7500_firmware to a higher version than 1.0.0.118,1.0.3.24,and avoid the version (,1.0.0.118),(,1.0.3.24); Upgrade netgear r7800_firmware to a higher version than 1.0.2.40,and avoid the version (,1.0.2.40); Upgrade netgear r900_firmware to a higher version than 1.0.2.52,and avoid the version (,1.0.2.52); Upgrade netgear wn2000rpt_firmware to a higher version than 1.0.1.20,and avoid the version (,1.0.1.20); Upgrade netgear wn3000rp_firmware to a higher version than 1.0.2.50,and avoid the version (,1.0.2.50); Upgrade netgear wn3100rp_firmware to a higher version than 1.0.0.56,and avoid the version (,1.0.0.56); 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 1.0.2.98,1.0.0.50,and avoid the version (,1.0.2.98),(,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)