Grandstream GXP-2000 VoIP Desktop Phone, firmware version 1.1.0.5, allows remote attackers to cause a denial of service (hang or reboot) via a large amount of ASCII data sent to port (1) 5060/UDP, (2) 5062/UDP, (3) 5064/UDP, (4) 5066/UDP, (5) 9876/UDP, or (6) 26789/UDP.
lists.grok.org.uk/pipermail/full-disclosure/2006-October/049876.html
secunia.com/advisories/22265
securityreason.com/securityalert/1718
www.grandstream.com/BETATEST/GXP2000_BT200/Release_Note_GXP2000-BT200_1.1.1.14.pdf
www.securityfocus.com/bid/20356
www.vupen.com/english/advisories/2006/3941
exchange.xforce.ibmcloud.com/vulnerabilities/29356