What is CVE-2009-3723?

CVE-2009-3723 is a high-severity vulnerability in Asterisk, classified under Incorrect Authorization. CVSS score: 7.5/10. Published 2019-10-29.

How severe is CVE-2009-3723?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Asterisk

CVE-2009-3723

asterisk allows calls on prohibited networks

Vulnerability class: Broken Access Control

Published 2019-10-29 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.012 (67.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Asterisk — versions All 1.6.1 versions
Sangoma Asterisk
Debian Linux — versions 8.0, 9.0, 10.0

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

security-tracker.debian.org/tracker/CVE-2009-3723 (Third Party Advisory)
access.redhat.com/security/cve/cve-2009-3723 (Third Party Advisory, Broken Link)
downloads.asterisk.org/pub/security/AST-2009-007.html (Vendor Advisory)

Frequently asked questions

What is CVE-2009-3723?: CVE-2009-3723 is a high-severity vulnerability in Asterisk, classified under Incorrect Authorization. CVSS score: 7.5/10. Published 2019-10-29.
How severe is CVE-2009-3723?: High severity. CVSS v3 base score is 7.5 out of 10.