CVE:CVE-2019-20748
CNNVD:CNNVD-202004-1359
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 R7500是一款无线路由器。NETGEAR RBK20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 1.0.1.44之前版本；R7500v2 1.0.3.38之前版本；R7800 1.0.2.52之前版本；RBK20 2.3.0.28之前版本；RBR20 2.3.0.28之前版本；RBS20 2.3.0.28之前版本；RBK40 2.3.0.28之前版本；RBS40 2.3.0.28之前版本；RBK50 2.3.0.32之前版本；RBR50 2.3.0.32之前版本；RBS50 2.3.0.32之前版本。
solution:Upgrade netgear d7800_firmware to a higher version than 1.0.1.44,and avoid the version (,1.0.1.44); Upgrade netgear r7500_firmware to a higher version than 1.0.3.38,and avoid the version (,1.0.3.38); Upgrade netgear r7800_firmware to a higher version than 1.0.2.52,and avoid the version (,1.0.2.52); Upgrade netgear rbk20_firmware to a higher version than 2.3.0.28,and avoid the version (,2.3.0.28); Upgrade netgear rbr20_firmware to a higher version than 2.3.0.28,and avoid the version (,2.3.0.28); Upgrade netgear rbs20_firmware to a higher version than 2.3.0.28,and avoid the version (,2.3.0.28); Upgrade netgear rbk40_firmware to a higher version than 2.3.0.28,and avoid the version (,2.3.0.28); Upgrade netgear rbs40_firmware to a higher version than 2.3.0.28,and avoid the version (,2.3.0.28); Upgrade netgear rbk50_firmware to a higher version than 2.3.0.32,and avoid the version (,2.3.0.32); Upgrade netgear rbr50_firmware to a higher version than 2.3.0.32,and avoid the version (,2.3.0.32); Upgrade netgear rbs50_firmware to a higher version than 2.3.0.32,and avoid the version (,2.3.0.32)