CVE-2007-6430

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.

Published: 2007-12-19 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2007-6430 is rated Moderate Risk (45.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.95%). Core evidence: EPSS rose +1.29% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2007-6430

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.66% 1.95% +1.29%
2 2026-03-06 0.62% 0.66% +0.04%
3 2026-01-14 0.62%

Full EPSS history (21 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-6430

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
8.6 2.9 [email protected]

Weakness enumeration for CVE-2007-6430

OS Trackers for CVE-2007-6430

vendor priority summary link
debian low CVE-2007-6430 low priority: Debian including 1 source packages (asterisk), 3 status rows across 3 suites (bullseye, forky, sid): resolved 3. https://security-tracker.debian.org/tracker/CVE-2007-6430
gentoo normal CVE-2007-6430: 1 GLSA(s) (200804-13), 1 atom(s) (net-misc/asterisk); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2007-6430
ubuntu medium CVE-2007-6430 medium priority: Ubuntu including 1 source packages (asterisk), 9 status rows across 9 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, jaunty, karmic, upstream): released 5, ignored 4. https://ubuntu.com/security/CVE-2007-6430

Affected software / configurations for CVE-2007-6430

Vendor Product Version Raw CPE
asterisk asterisk_business_edition b.1.3.2 cpe:2.3:a:asterisk:asterisk_business_edition:b.1.3.2:*:*:*:*:*:*:*
asterisk asterisk_business_edition b.1.3.3 cpe:2.3:a:asterisk:asterisk_business_edition:b.1.3.3:*:*:*:*:*:*:*
asterisk asterisk_business_edition b.2.2.0 cpe:2.3:a:asterisk:asterisk_business_edition:b.2.2.0:*:*:*:*:*:*:*
asterisk asterisk_business_edition b.2.2.1 cpe:2.3:a:asterisk:asterisk_business_edition:b.2.2.1:*:*:*:*:*:*:*
asterisk asterisk_business_edition b.2.3.1 cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.1:*:*:*:*:*:*:*
asterisk asterisk_business_edition b.2.3.2 cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.2:*:*:*:*:*:*:*
asterisk asterisk_business_edition b.2.3.3 cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.3:*:*:*:*:*:*:*
asterisk asterisk_business_edition b.2.3.4 cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.4:*:*:*:*:*:*:*
asterisk asterisk_business_edition c.1.0beta7 cpe:2.3:a:asterisk:asterisk_business_edition:c.1.0beta7:*:*:*:*:*:*:*
asterisk open_source 1.2.0beta1 cpe:2.3:a:asterisk:open_source:1.2.0beta1:*:*:*:*:*:*:*
asterisk open_source 1.2.0beta2 cpe:2.3:a:asterisk:open_source:1.2.0beta2:*:*:*:*:*:*:*
asterisk open_source 1.2.5 cpe:2.3:a:asterisk:open_source:1.2.5:*:*:*:*:*:*:*
asterisk open_source 1.2.6 cpe:2.3:a:asterisk:open_source:1.2.6:*:*:*:*:*:*:*
asterisk open_source 1.2.7 cpe:2.3:a:asterisk:open_source:1.2.7:*:*:*:*:*:*:*
asterisk open_source 1.2.8 cpe:2.3:a:asterisk:open_source:1.2.8:*:*:*:*:*:*:*
asterisk open_source 1.2.9 cpe:2.3:a:asterisk:open_source:1.2.9:*:*:*:*:*:*:*
asterisk open_source 1.2.10 cpe:2.3:a:asterisk:open_source:1.2.10:*:*:*:*:*:*:*
asterisk open_source 1.2.11 cpe:2.3:a:asterisk:open_source:1.2.11:*:*:*:*:*:*:*
asterisk open_source 1.2.13 cpe:2.3:a:asterisk:open_source:1.2.13:*:*:*:*:*:*:*
asterisk open_source 1.2.14 cpe:2.3:a:asterisk:open_source:1.2.14:*:*:*:*:*:*:*
asterisk open_source 1.2.15 cpe:2.3:a:asterisk:open_source:1.2.15:*:*:*:*:*:*:*
asterisk open_source 1.2.16 cpe:2.3:a:asterisk:open_source:1.2.16:*:*:*:*:*:*:*
asterisk open_source 1.2.17 cpe:2.3:a:asterisk:open_source:1.2.17:*:*:*:*:*:*:*
asterisk open_source 1.2.18 cpe:2.3:a:asterisk:open_source:1.2.18:*:*:*:*:*:*:*
asterisk open_source 1.2.19 cpe:2.3:a:asterisk:open_source:1.2.19:*:*:*:*:*:*:*
asterisk open_source 1.2.21 cpe:2.3:a:asterisk:open_source:1.2.21:*:*:*:*:*:*:*
asterisk open_source 1.2.22 cpe:2.3:a:asterisk:open_source:1.2.22:*:*:*:*:*:*:*
asterisk open_source 1.2.23 cpe:2.3:a:asterisk:open_source:1.2.23:*:*:*:*:*:*:*
asterisk open_source 1.2.24 cpe:2.3:a:asterisk:open_source:1.2.24:*:*:*:*:*:*:*
asterisk open_source 1.2.25 cpe:2.3:a:asterisk:open_source:1.2.25:*:*:*:*:*:*:*
asterisk open_source 1.4.1 cpe:2.3:a:asterisk:open_source:1.4.1:*:*:*:*:*:*:*
asterisk open_source 1.4.2 cpe:2.3:a:asterisk:open_source:1.4.2:*:*:*:*:*:*:*
asterisk open_source 1.4.3 cpe:2.3:a:asterisk:open_source:1.4.3:*:*:*:*:*:*:*
asterisk open_source 1.4.4 cpe:2.3:a:asterisk:open_source:1.4.4:*:*:*:*:*:*:*
asterisk open_source 1.4.5 cpe:2.3:a:asterisk:open_source:1.4.5:*:*:*:*:*:*:*
asterisk open_source 1.4.6 cpe:2.3:a:asterisk:open_source:1.4.6:*:*:*:*:*:*:*
asterisk open_source 1.4.7 cpe:2.3:a:asterisk:open_source:1.4.7:*:*:*:*:*:*:*
asterisk open_source 1.4.8 cpe:2.3:a:asterisk:open_source:1.4.8:*:*:*:*:*:*:*
asterisk open_source 1.4.9 cpe:2.3:a:asterisk:open_source:1.4.9:*:*:*:*:*:*:*
asterisk open_source 1.4.10 cpe:2.3:a:asterisk:open_source:1.4.10:*:*:*:*:*:*:*
asterisk open_source 1.4.11 cpe:2.3:a:asterisk:open_source:1.4.11:*:*:*:*:*:*:*
asterisk open_source 1.4.12 cpe:2.3:a:asterisk:open_source:1.4.12:*:*:*:*:*:*:*
asterisk open_source 1.4.13 cpe:2.3:a:asterisk:open_source:1.4.13:*:*:*:*:*:*:*
asterisk open_source 1.4.14 cpe:2.3:a:asterisk:open_source:1.4.14:*:*:*:*:*:*:*
asterisk open_source 1.4.15 cpe:2.3:a:asterisk:open_source:1.4.15:*:*:*:*:*:*:*
asterisk open_source 1.4beta cpe:2.3:a:asterisk:open_source:1.4beta:*:*:*:*:*:*:*

References for CVE-2007-6430

cvelogic Threat Intelligence