Sangoma FreePBX Improper Authentication Vulnerability

Technical Severity

CVSS v3.1 Metrics

CRITICAL

9.8 / 10

Minimal Risk Critical

Vector Specification

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation Likelihood

EPSS Prediction

21.64 %

Predictive Probability

Percentile Rank

95.7 th

Documented as more likely to be exploited than 95.7% of known CVEs.

Detection Date

Feb 03, 2026

Remediation Due

Feb 24, 2026

CISA Catalog Active

Threat Analysis

Sangoma FreePBX contains an improper authentication vulnerability that potentially allows unauthorized users to bypass password authentication and access services provided by the FreePBX admin.

Remediation Directive

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

External Intelligence

https://wiki.freepbx.org/display/FOP/2019-11-20%2BRemote%2BAdmin%2BAuthentication%2BBypass

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2019-19006