CVE-2007-6430: Asterisk Business Edition

Medium severity, CVSS 4.3. EPSS: 2% chance of exploitation in the next 30 days.

Asterisk Open Source 1.2.x before 1.2.26 and 1.4.x before 1.4.16, and Business Edition B.x.x before B.2.3.6 and C.x.x before C.1.0-beta8, when using database-based registrations ("realtime") and host-based authentication, does not check the IP address when the username is correct and there is no password, which allows remote attackers to bypass authentication using a valid username.

Affected products

• Asterisk Asterisk Business Edition: version b.1.3.2 only; version b.1.3.3 only; version b.2.2.0 only; version b.2.2.1 only; version b.2.3.1 only; version b.2.3.2 only; …
• Asterisk Open Source: version 1.2.0beta1 only; version 1.2.0beta2 only; version 1.2.5 only; version 1.2.6 only; version 1.2.7 only; version 1.2.8 only; …

Published 2007-12-20. Last modified 2026-06-16.