CVE:CVE-2021-31340
CNNVD:CNNVD-202106-475
Siemens SIMATIC是西门子（Siemens）的一款组态软件。
Siemens SIMATIC 多款产品存在资源管理错误漏洞，该漏洞源于受影响的设备无法正确处理大量传入连接。 攻击者可能会利用它来导致拒绝服务情况。
solution:Upgrade siemens simatic_rf166c_firmware to a higher version than 1.3.2,and avoid the version (1.1,1.3.2); Upgrade siemens simatic_rf185c_firmware to a higher version than 1.3.2,and avoid the version (1.1,1.3.2); Upgrade siemens simatic_rf186c_firmware to a higher version than 1.3.2,and avoid the version (1.1,1.3.2); Upgrade siemens simatic_rf186ci_firmware to a higher version than 1.3.2,and avoid the version (1.1,1.3.2); Upgrade siemens simatic_rf188c_firmware to a higher version than 1.3.2,and avoid the version (1.1,1.3.2); Upgrade siemens simatic_rf188ci_firmware to a higher version than 1.3.2,and avoid the version (1.1,1.3.2); Upgrade siemens simatic_rf360r_firmware to a higher version than 2.0,and avoid the version (,2.0); Upgrade siemens simatic_reader_rf610r_cmiit_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf610r_etsi_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf610r_fcc_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf615r_cmiit_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf615r_etsi_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf615r_fcc_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf650r_cmiit_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf650r_etsi_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf650r_fcc_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf650r_arib_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf680r_cmiit_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf680r_etsi_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf680r_fcc_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf680r_arib_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf685r_cmiit_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf685r_etsi_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf685r_fcc_firmware to a higher version than 4.0,and avoid the version [3.0,4.0); Upgrade siemens simatic_reader_rf685r_arib_firmware to a higher version than 4.0,and avoid the version [3.0,4.0)