CVE-2007-5639

Published: Oct 23, 2007Modified: Apr 23, 2026

7.1

Vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Exploitability: 8.6 / Impact: 6.9

Source: NVD

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 (2)

Products: Nortel: Ip Softphone 2050, Mobile Voice Client 2050

Nortel

2 products

Ip Softphone 2050

Mobile Voice Client 2050

Configuration A

2 vulnerable · 13 platform

Vulnerable Software	Affected Versions
Nortel Ip Softphone 2050	All versions
Nortel Mobile Voice Client 2050	All versions

Running on/with	Platform Versions
Nortel Ip Audio Conference Phone 2033	All versions
Nortel Ip Phone 1110	All versions
Nortel Ip Phone 1120e	All versions
Nortel Ip Phone 1140e	All versions
Nortel Ip Phone 1150e	All versions
Nortel Ip Phone 2001	All versions
Nortel Ip Phone 2002	All versions
Nortel Ip Phone 2004	All versions
Nortel Wlan Handset 2210	All versions
Nortel Wlan Handset 2211	All versions
Nortel Wlan Handset 2212	All versions
Nortel Wlan Handset 6120	All versions
Nortel Wlan Handset 6140	All versions