7.1
CVSSv2

CVE-2007-5640

Published: 23/10/2007 Updated: 15/10/2018
CVSS v2 Base Score: 7.1 | Impact Score: 6.9 | Exploitability Score: 8.6
VMScore: 632
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C

Vulnerability Summary

The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and additional Nortel products from the IP Phone, Business Communications Manager (BCM), Mobile Voice Client, and other product lines, allow remote malicious users to block calls and force re-registration via a resume message to the Signaling Server that has a spoofed source IP address for the phone. NOTE: the attack is more disruptive if a new spoofed resume message is sent after each re-registration.

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nortel business_communications_manager srg50

nortel centrex_ip_client_manager

nortel mobile_voice_client_2050

nortel business_communications_manager 400

nortel business_communications_manager 50

nortel business_communications_manager 50a

nortel meridian_option_51c

nortel meridian_option_61c

nortel business_communications_manager 50e

nortel business_communications_manager srg200

nortel meridian_option_81c

nortel meridian_sl100 cs2100

nortel business_communications_manager 1000

nortel business_communications_manager 200

nortel centrex_ip_element_manager

nortel meridian_option_11c