CVE-2003-1113: Iptel SIP Express Router

High severity, CVSS 7.5. EPSS: 5.1% chance of exploitation in the next 30 days.

The Session Initiation Protocol (SIP) implementation in IPTel SIP Express Router 0.8.9 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary code via crafted INVITE messages, as demonstrated by the OUSPG PROTOS c07-sip test suite.

Affected products

• Iptel SIP Express Router: version 0.8.8 only; version 0.8.9 only

Published 2003-12-31. Last modified 2026-06-16.