CVE:CVE-2006-0375
CNNVD:CNNVD-200601-289
VxWorks上运行1.1.21固件的Advantage Century Telecommunication (ACT) P202S IP Phone 1.01.21，使用台湾的硬编码Network Time Protocol (NTP)服务器，远程攻击者提供虚假的时间信息、阻止访问时间信息或执行其他攻击。
solution:Upgrade advantage_century_telecommunication p202s to a higher version than 1.01.21_firmware_1.1.21,and avoid the version 1.01.21_firmware_1.1.21