CVE-2007-3763: n/a vulnerability

CVE-2007-3763: The IAX2 channel driver (chan_iax2) in Asterisk before 1.2.22 and 1.4.x before 1.4.8, Business Edition befo...

The IAX2 channel driver (chan_iax2) in Asterisk before 1.2.22 and 1.4.x before 1.4.8, Business Edition before B.2.2.1, AsteriskNOW before beta7, Appliance Developer Kit before 0.5.0, and s800i before 1.0.2 allows remote attackers to cause a denial of service (crash) via a crafted (1) LAGRQ or (2) LAGRP frame that contains information elements of IAX frames, which results in a NULL pointer dereference when Asterisk does not properly set an associated variable.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 14:28 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2007-3763 is a remote denial-of-service flaw in Asterisk's IAX2 channel driver. Specially crafted IAX2 lag frames can crash affected systems. The business impact is voice service interruption, not data theft based on the supplied sources. Exposure is most likely where affected Asterisk or Digium-based PBX systems have IAX2 enabled and reachable from untrusted networks. Organizations running only patched versions or without IAX2 exposure are less likely to be affected. Treat this as a service-availability risk for VoIP infrastructure. Prioritize patching internet-facing or partner-facing PBX systems first, especially where voice availability affects operations, support, or emergency communications. Mitigation focus: Upgrade to Asterisk 1.2.22, 1.4.8, or vendor-fixed editions listed in advisories.; Apply relevant Debian, Gentoo, SUSE, or Digium security updates where packages are vendor-managed.; Restrict IAX2 access to trusted networks if immediate patching is delayed..

Prepared: Jun 29, 2026, 04:34 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2007-3763 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 18, 2007, 17:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

1Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.