CVE-2007-3351: Sj Labs Sjphone

High severity, CVSS 7.8. EPSS: 1.6% chance of exploitation in the next 30 days.

The SJPhone SIP soft phone 1.60.303c, when installed on the Dell Axim X3 running Windows Mobile 2003, allows remote attackers to cause a denial of service (device hang and traffic amplification) via a direct crafted INVITE transaction, which causes the phone to transmit many RTP packets.

Affected products

• Sj Labs Sjphone: version 1.60.303c only

Published 2007-06-22. Last modified 2026-06-16.