CVE:CVE-2020-25757
CNNVD:CNNVD-202012-1107
D-link DSR-250等都是中国友讯（D-link）公司的一款统一服务路由器。
D-Link DSR VPN routers with firmware 3.14 and 3.17存在输入验证错误漏洞，该漏洞源于缺乏输入验证和访问控制，可能会导致任意输入被传递到系统命令api，导致使用root权限执行任意命令。
solution:Upgrade dlink dsr-150_firmware to a higher version than 3.17,and avoid the version (,3.17]; Upgrade dlink dsr-150n_firmware to a higher version than 3.17,and avoid the version (,3.17]; Upgrade dlink dsr-250_firmware to a higher version than 3.17,and avoid the version (,3.17]; Upgrade dlink dsr-250n_firmware to a higher version than 3.17,and avoid the version (,3.17]; Upgrade dlink dsr-500_firmware to a higher version than 3.17,and avoid the version (,3.17]; Upgrade dlink dsr-500n_firmware to a higher version than *; Upgrade dlink dsr-500ac_firmware to a higher version than 3.17,and avoid the version (,3.17]; Upgrade dlink dsr-1000_firmware to a higher version than 3.17,and avoid the version (,3.17]; Upgrade dlink dsr-1000n_firmware to a higher version than 3.17,and avoid the version (,3.17]; Upgrade dlink dsr-1000ac_firmware to a higher version than 3.17,and avoid the version (,3.17]