CVE-2008-3157: Nortel SIP Multimedia Pc Client

Medium severity, CVSS 5.0. EPSS: 1.4% chance of exploitation in the next 30 days.

Nortel SIP Multimedia PC Client 4.x MCS5100 and MCS5200 does not limit the number of concurrent sessions, which allows attackers to cause a denial of service (resource consumption) via a large number of sessions.

Affected products

• Nortel SIP Multimedia Pc Client: version 4.0 only

Published 2008-07-11. Last modified 2026-06-16.