dbcve.org
FreepbxApplication · Sangoma

CVE-2025-59056

HIGH · 7.5 CVSS v3.1 Published 2025-09-15
Fix available
A fix is available. Upgrade to 15.0.38 / 16.0.41 or later.
See remediation →
84/100
Remediation priority · High
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
FreePBX is an open-source web-based graphical user interface. In FreePBX 15, 16, and 17, malicious connections to the Administrator Control Panel web interface can cause the uninstall function to be triggered for certain modules. This function drops the module's database tables, which is where most modules store their configuration. This vulnerability is fixed in 15.0.38, 16.0.41, and 17.0.21.

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 · high confidence

FreePBX Administrator Control Panel contains a vulnerability allowing unauthenticated malicious connections to trigger the module uninstall function, which drops database tables for affected modules. This is an unauthenticated remote vulnerability in the web interface that causes data destruction.

MitigationApply the vendor-supplied patches (15.0.38, 16.0.41, or 17.0.21). If immediate patching is not feasible, restrict network access to the Administrator Control Panel to trusted IPs only.

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:>= 15.0, < 15.0.38>= 16.0, < 16.0.41>= 17.0, < 17.0.21

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
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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
    Run 'fwconsole ma list' or check the admin web interface under Admin > System Admin > System Info. Alternatively, inspect /etc/freepbx.conf for the version string.
    Affected if The installed version falls within these ranges: 15.0.x where x < 38, 16.0.x where x < 41, or 17.0.x where x < 21.
  2. Verify admin panel network exposure
    Confirm whether the FreePBX HTTP/HTTPS web interface (port 80/443 or custom) is accessible from untrusted networks. Check firewall rules, reverse proxy configs, or cloud security groups.
    Affected if The admin control panel is exposed to the internet or untrusted internal networks without IP restrictions.
  3. Check web server logs for uninstall endpoints
    Review Apache/Nginx access logs for unusual POST requests to /admin/api.php?module=uninstall or similar module removal endpoints from unexpected IPs.

You are affected if FreePBX version is below 15.0.38, 16.0.41, or 17.0.21 AND the admin control panel is network-accessible from untrusted IPs.

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 15.0.38 / 16.0.41 / 17.0.21 or later
Fixed in 15.0.3816.0.4117.0.21
Interim mitigation

Apply the vendor-supplied patches (15.0.38, 16.0.41, or 17.0.21). If immediate patching is not feasible, restrict network access to the Administrator Control Panel to trusted IPs only.

Recommended fix High confidence

FreePBX 15.0.38, 16.0.41, or 17.0.21 (depending on major version)

  1. 1. Back up the FreePBX system, including all configurations and databases, before attempting any upgrade
  2. 2. Identify the currently installed FreePBX version (15.x, 16.x, or 17.x)
  3. 3. For FreePBX 15.x systems: Upgrade to version 15.0.38
  4. 4. For FreePBX 16.x systems: Upgrade to version 16.0.41
  5. 5. For FreePBX 17.x systems: Upgrade to version 17.0.21
  6. 6. After upgrade, verify that the Administrator Control Panel is accessible and functioning normally
  7. 7. Check that critical modules are installed and their database tables are intact
Caveat Standard upgrade risks apply - ensure full backup before proceeding; minor module compatibility issues may occur and should be tested

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

Fix this in Freepbx Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,984.

Scan for this in your stack

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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-2025-59056 in production — separate from our analysis above.

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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