CVEvulnerability

CVE-2007-5639

7.1 HIGH Published 2007-10-23 Modified 2026-06-16 Official page ↗

Status: Modified
Published: 2007-10-23
Last modified: 2026-06-16
Assigner: [email protected]
CVSS 2.0 ([email protected]): 7.1 HIGH — AV:N/AC:M/Au:N/C:N/I:N/A:C

Description

The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and other Nortel IP Phone, Mobile Voice Client, and WLAN Handsets products allow remote attackers to cause a denial of service (device hang) via a flood of Mute and UnMute messages that have a spoofed source IP address for the Signaling Server.

Affected configurations

• nortel ip softphone 2050 • nortel mobile voice client 2050

References

http://securityreason.com/securityalert/3273 securityreason.com
http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=654715 Patch
http://www.csnc.ch/static/advisory/csnc/nortel_IP_phone_flooding_denial_of_service_v1.0.txt Exploit
http://www.securityfocus.com/archive/1/482480/100/0/threaded www.securityfocus.com
http://www.securityfocus.com/bid/26122 Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/37253 exchange.xforce.ibmcloud.com
http://securityreason.com/securityalert/3273 securityreason.com
http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=654715 Patch
http://www.csnc.ch/static/advisory/csnc/nortel_IP_phone_flooding_denial_of_service_v1.0.txt Exploit
http://www.securityfocus.com/archive/1/482480/100/0/threaded www.securityfocus.com
http://www.securityfocus.com/bid/26122 Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/37253 exchange.xforce.ibmcloud.com