What is CVE-2023-26567?

CVE-2023-26567 is a high-severity vulnerability in Sangoma Freepbx Linux 7, classified under Insufficiently Protected Credentials. CVSS score: 8.1/10. Published 2023-04-26.

How severe is CVE-2023-26567?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Sangoma Freepbx Linux 7

CVE-2023-26567

Sangoma FreePBX 1805 through 2302 (when obtained as a ,.ISO file) places AMPDBUSER, AMPDBPASS, AMPMGRUSER, and AMPMGRPASS in the list of global variables. This exposes cleartext authentication credentials for the Asterisk Database (MariaDB/MySQL) and Asterisk Manager Interface. For example, an attacker can make a /ari/asterisk/variable?variable=AMPDBPASS API call.

Published 2023-04-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.006 (49.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Sangoma Freepbx Linux 7 — versions 1805, 1904, 1910

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

www.freepbx.org (Product)
www.sangoma.com/products/open-source/ (Product)
qsecure.com.cy/resources/advisories/sangoma-freepbx-linux-insecure-permissions (Third Party Advisory)

Frequently asked questions

What is CVE-2023-26567?: CVE-2023-26567 is a high-severity vulnerability in Sangoma Freepbx Linux 7, classified under Insufficiently Protected Credentials. CVSS score: 8.1/10. Published 2023-04-26.
How severe is CVE-2023-26567?: High severity. CVSS v3 base score is 8.1 out of 10.