CVE:CVE-2021-21000
CNNVD:CNNVD-202105-1455
WAGO是德国万可（WAGO）的一款750-88x系列可编程逻辑控制器。该设备专门为在工业环境下应用而设计的数字运算操作电子系统。
WAGO PFC200设备存在安全漏洞，该漏洞源于对设备进行网络访问的攻击者可利用该漏洞可能会对运行时的登录服务造成拒绝服务。
solution:Upgrade wago 750-823_firmware to a higher version than fw07,and avoid the version (,fw07]; Upgrade wago 750-829_firmware to a higher version than fw14,and avoid the version (,fw14]; Upgrade wago 750-831_firmware to a higher version than fw14,and avoid the version (,fw14]; Upgrade wago 750-832_firmware to a higher version than fw06,and avoid the version (,fw06]; Upgrade wago 750-852_firmware to a higher version than fw14,and avoid the version (,fw14]; Upgrade wago 750-862_firmware to a higher version than fw07,and avoid the version (,fw07]; Upgrade wago 750-880_firmware to a higher version than fw15,and avoid the version (,fw15]; Upgrade wago 750-881_firmware to a higher version than fw14,and avoid the version (,fw14]; Upgrade wago 750-882_firmware to a higher version than fw14,and avoid the version (,fw14]; Upgrade wago 750-885_firmware to a higher version than fw14,and avoid the version (,fw14]; Upgrade wago 750-889_firmware to a higher version than fw14,and avoid the version (,fw14]; Upgrade wago 750-890_firmware to a higher version than fw07,and avoid the version (,fw07]; Upgrade wago 750-891_firmware to a higher version than fw07,and avoid the version (,fw07]; Upgrade wago 750-893_firmware to a higher version than fw07,and avoid the version (,fw07]; Upgrade wago 750-8202_firmware to a higher version than 03.06.19_\(18\,and avoid the version (,03.06.19_\(18\)); Upgrade wago 750-8203_firmware to a higher version than 03.06.19_\(18\,and avoid the version (,03.06.19_\(18\)); Upgrade wago 750-8204_firmware to a higher version than 03.06.19_\(18\,and avoid the version (,03.06.19_\(18\)); Upgrade wago 750-8206_firmware to a higher version than 03.06.19_\(18\,and avoid the version (,03.06.19_\(18\)); Upgrade wago 750-8207_firmware to a higher version than 03.06.19_\(18\,and avoid the version (,03.06.19_\(18\)); Upgrade wago 750-8208_firmware to a higher version than 03.06.19_\(18\,and avoid the version (,03.06.19_\(18\)); Upgrade wago 750-8210_firmware to a higher version than 03.06.19_\(18\,and avoid the version (,03.06.19_\(18\)); Upgrade wago 750-8211_firmware to a higher version than 03.06.19_\(18\,and avoid the version (,03.06.19_\(18\)); Upgrade wago 750-8212_firmware to a higher version than 03.06.19_\(18\,and avoid the version (,03.06.19_\(18\)); Upgrade wago 750-8213_firmware to a higher version than 03.06.19_\(18\,and avoid the version (,03.06.19_\(18\)); Upgrade wago 750-8214_firmware to a higher version than 03.06.19_\(18\,and avoid the version (,03.06.19_\(18\)); Upgrade wago 750-8216_firmware to a higher version than 03.06.19_\(18\,and avoid the version (,03.06.19_\(18\)); Upgrade wago 750-8217_firmware to a higher version than 03.06.19_\(18\,and avoid the version (,03.06.19_\(18\))