CVE:CVE-2020-3574
CNNVD:CNNVD-202011-339
Cisco IP Phone 8800 Series和Cisco IP Phone 7800 Series都是美国思科（Cisco）公司的产品。Cisco IP Phone 8800 Series是一款8800系列的IP电话。Cisco IP Phone 7800 Series是一款7800系列IP电话。
Cisco IP Phone 存在安全漏洞，该漏洞可导致致命错误，进而导致拒绝服务。
solution:Upgrade cisco ip_dect_210_firmware to a higher version than 4.8.1,and avoid the version (,4.8.1); Upgrade cisco ip_dect_6825_firmware to a higher version than 4.8.1,and avoid the version (,4.8.1); Upgrade cisco ip_phone_8811_firmware to a higher version than 11.3.2,and avoid the version (,11.3.2); Upgrade cisco ip_phone_8841_firmware to a higher version than 11.3.2,and avoid the version (,11.3.2); Upgrade cisco ip_phone_8851_firmware to a higher version than 11.3.2,and avoid the version (,11.3.2); Upgrade cisco ip_phone_8861_firmware to a higher version than 11.3.2,and avoid the version (,11.3.2); Upgrade cisco unified_ip_conference_phone_8831_firmware to a higher version than 9.3(4:servicerelease3,and avoid the version 9.3(4):servicerelease3; Upgrade cisco webex_room_phone_firmware to a higher version than 1.2.0,and avoid the version (,1.2.0)