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Nortel IP Phones UNIStim Messages Denial of Service Vulnerability

Nortel IP Phones are prone to a denial-of-service vulnerability because the devices fail to handle specially crafted IP packets. Affected IP Phones include:

IP Phone 1140E
IP Softphone 2050
IP Audio Conf Phone 2033
IP Phone 1100 series
IP Phone 200x
Mobile Voice Client 2050
WLAN Handset 2210, 2211, 2212, 6120, 6140

An attacker can exploit this issue to crash an affected device, denying service to legitimate users.







 

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