CVE:CVE-2015-0744
CNNVD:CNNVD-201505-596
Cisco DTA（Digital Transport Adapter）Control System（DTACS）和Cisco Headend System Release都是美国思科（Cisco）公司的前端宽带数字传输系统。
Cisco DTACS 4.0.0.9版本和Cisco Headend System Release中存在安全漏洞，该漏洞源于程序没有限制TCP端口的流量。远程攻击者可利用该漏洞造成拒绝服务（CPU和内存消耗，TCP服务中断）。
solution:Upgrade cisco dta_control_system to a higher version than 4.0.0.9,and avoid the version 4.0.0.9; Upgrade cisco headend_digital_broadband_delivery_system to a higher version than -; Upgrade cisco headend_system_release to a higher version than 2.5,2.7,3.2,3.5,3.7,i4.3,and avoid the version 2.5,2.7,3.2,3.5,3.7,i4.3