{"cve":"CVE-2007-3763","nvd":{"published":"2007-07-18T17:30:00.000","modified":"2026-06-16T22:42:41.233","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://bugs.gentoo.org/show_bug.cgi?id=185713","http://ftp.digium.com/pub/asa/ASA-2007-015.pdf","http://secunia.com/advisories/26099","http://secunia.com/advisories/29051","http://security.gentoo.org/glsa/glsa-200802-11.xml"],"products":["asterisk:asterisk","asterisk:asterisk_appliance_developer_kit","asterisk:asterisknow","asterisk:s800i_appliance"],"source":"nvd","synced_at":"2026-10-19T19:48:28.501292361+00:00"},"epss":{"cve":"CVE-2007-3763","score":0.2656,"percentile":0.98017,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}