Actively exploited in the wild. This CVE is on the CISA Known Exploited Vulnerabilities list — treat remediation as urgent. Federal remediation due by 24 Feb 2026.
FreepbxApplication · Sangoma

CVE-2019-19006

CRITICAL · 9.8 CVSS v3.1 Published 2019-11-21
Fix available
A fix is available. Upgrade to after 15.0.16.26 or later.
See remediation →
100/100
Remediation priority · Urgent
In the wild Public exploit Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Sangoma FreePBX 115.0.16.26 and below, 14.0.13.11 and below, 13.0.197.13 and below have Incorrect Access Control.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

Sangoma FreePBX contains an Incorrect Access Control vulnerability affecting versions 15.0.16.26 and below, 14.0.13.11 and below, and 13.0.197.13 and below. The CVSS 9.8 rating indicates this is a network-exploitable, low-complexity vulnerability requiring no authentication, likely allowing unauthorized access to sensitive administrative functions or data within the FreePBX telephony management interface.

MitigationUpgrade Sangoma FreePBX to versions higher than 15.0.16.26, 14.0.13.11, or 13.0.197.13 respectively. If immediate patching is not possible, restrict network access to the FreePBX management interface using firewall rules or VPN access controls.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
FreepbxApplication
Affected:>= 13.0.0.0, <= 13.0.197.13>= 14.0.0.0, <= 14.0.13.11>= 15.0.0.0, <= 15.0.16.26

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Determine installed FreePBX version
    Log into the FreePBX admin dashboard and navigate to Admin > System Admin > System Overview, or run 'fwconsole ma list' at the command line to see the installed version
    Affected if The installed version falls within 13.0.0.0 to 13.0.197.13, 14.0.0.0 to 14.0.13.11, or 15.0.0.0 to 15.0.16.26
  2. Verify admin interface requires authentication
    Attempt to access FreePBX admin endpoints (such as /admin/config.php or /ajax.php) from an unauthenticated browser session or curl request without passing session credentials
    Affected if The admin interface or certain administrative endpoints are accessible without authentication or valid session cookies
  3. Check for exposed management ports
    Use 'netstat -tlnp' or 'ss -tlnp' to list listening services on the system, particularly ports 80, 443, or custom management ports used by FreePBX
    Affected if The FreePBX web interface is listening on publicly accessible network addresses (0.0.0.0) rather than restricted to localhost or trusted internal IPs
  4. Review user role and permission configuration
    Navigate to Admin > User Management in the FreePBX interface and examine whether all users have appropriate role-based access controls assigned, or inspect the database tables for user privileges
    Affected if Users exist with elevated privileges or administrative access that should not have been granted, or role enforcement is not functioning properly

A system is affected if it runs FreePBX versions 13.0.197.13 and below, 14.0.13.11 and below, or 15.0.16.26 and below, AND the admin interface or sensitive endpoints are accessible without proper authorization.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 15.0.16.26
Interim mitigation

Upgrade Sangoma FreePBX to versions higher than 15.0.16.26, 14.0.13.11, or 13.0.197.13 respectively. If immediate patching is not possible, restrict network access to the FreePBX management interface using firewall rules or VPN access controls.

Recommended fix Moderate confidence

FreePBX 15.0.16.27 or later (or the latest 15.x release); alternatively migrate to FreePBX 17 (if available)

  1. 1. Backup the current FreePBX configuration and all critical data
  2. 2. Identify the current FreePBX version in the Admin > System Admin > System Info page
  3. 3. If running FreePBX 13.x: Upgrade to version 13.0.197.14 or later
  4. 4. If running FreePBX 14.x: Upgrade to version 14.0.13.14 or later (the first version after 14.0.13.11 that includes the fix)
  5. 5. If running FreePBX 15.x: Upgrade to version 15.0.16.27 or later (the first version after 15.0.16.26 that includes the fix)
  6. 6. Use the Module Admin interface or command-line fwconsole ma upgradenone to perform the upgrade
  7. 7. After upgrade, verify that the web interface is accessible and authentication is working correctly
  8. 8. Review admin accounts and reset passwords as a security precaution
Caveat FreePBX 13 reached end-of-life and may have limited upgrade paths; ensure PHP version compatibility (PHP 7.4+ required for newer versions); review module compatibility after upgrade

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Freepbx Exploited in the wild — priority engagement
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA3.0 h
21.0 hours of engineering $3,680
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Scan for this in your stack

Free · runs locally
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2019-19006 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data