CVE:CVE-2021-40127
CNNVD:CNNVD-202111-359
Cisco Small Business是美国思科（Cisco）公司的一个交换机。
Cisco Small Business 交换机 存在输入验证错误漏洞，该漏洞源于web管理页面对HTTP请求的验证不当造成的。攻击者可利用该漏洞通过向受影响的设备发送精心制作的HTTP请求导致dos。
solution:Upgrade cisco sf200-24_firmware to a higher version than -; Upgrade cisco sf200-24fp_firmware to a higher version than -; Upgrade cisco sf200-24p_firmware to a higher version than -; Upgrade cisco sf200-48_firmware to a higher version than -; Upgrade cisco sf200-48p_firmware to a higher version than -; Upgrade cisco sf200e-24_firmware to a higher version than -; Upgrade cisco sf200e-24p_firmware to a higher version than -; Upgrade cisco sf200e-48_firmware to a higher version than -; Upgrade cisco sf200e-48p_firmware to a higher version than -; Upgrade cisco sg200-08_firmware to a higher version than -; Upgrade cisco sg200-08p_firmware to a higher version than -; Upgrade cisco sg200-10fp_firmware to a higher version than -; Upgrade cisco sg200-18_firmware to a higher version than -; Upgrade cisco sg200-26_firmware to a higher version than -; Upgrade cisco sg200-26fp_firmware to a higher version than -; Upgrade cisco sg200-26p_firmware to a higher version than -; Upgrade cisco sg200-50_firmware to a higher version than -; Upgrade cisco sg200-50fp_firmware to a higher version than -; Upgrade cisco sg200-50p_firmware to a higher version than -; Upgrade cisco sf300-08_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sf300-24_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sf300-24mp_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sf300-24p_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sf300-24pp_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sf300-48_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sf300-48p_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sf300-48pp_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sf302-08_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sf302-08mp_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sf302-08mpp_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sf302-08p_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sf302-08pp_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sg300-10_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sg300-10mp_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sg300-10mpp_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sg300-10p_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sg300-10pp_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sg300-sfp_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sg300-20_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sg300-28_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sg300-28mp_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sg300-28p_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sg300-28pp_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sg300-28sfp_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sg300-52_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sg300-52mp_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sg300-52p_firmware to a higher version than 1.4.11.02,and avoid the version 1.4.11.02; Upgrade cisco sf500-24_firmware to a higher version than -; Upgrade cisco sf500-24mp_firmware to a higher version than -; Upgrade cisco sf500-24p_firmware to a higher version than -; Upgrade cisco sf500-48_firmware to a higher version than -; Upgrade cisco sf500-48mp_firmware to a higher version than -; Upgrade cisco sf500-48p_firmware to a higher version than -; Upgrade cisco sg500-28_firmware to a higher version than -; Upgrade cisco sg500-28mpp_firmware to a higher version than -; Upgrade cisco sg500-28p_firmware to a higher version than -; Upgrade cisco sg500-52_firmware to a higher version than -; Upgrade cisco sg500-52mp_firmware to a higher version than -; Upgrade cisco sg500-52p_firmware to a higher version than -; Upgrade cisco sg500x-24_firmware to a higher version than -; Upgrade cisco sg500x-24mpp_firmware to a higher version than -; Upgrade cisco sg500x-24p_firmware to a higher version than -; Upgrade cisco sg500x-48_firmware to a higher version than -; Upgrade cisco sg500x-48mpp_firmware to a higher version than -; Upgrade cisco sg500x-48p_firmware to a higher version than -; Upgrade cisco sg500xg-8f8t_firmware to a higher version than -