# CVE-2025-59056: FreePBX vulnerable to unauthenticated Denial of Service

> Unauthenticated attackers can trigger module uninstallation in FreePBX, dropping database tables and causing denial of service.

- **Severity:** Medium 6.6 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:Y/R:U/V:D/RE:L/U:Red`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Sep 2025
- **Updated:** 13 Feb 2026
- **Also known as:** GHSA-frc2-jhgg-rwpr

## What is CVE-2025-59056?

CVE-2025-59056 is a medium-severity missing authorization vulnerability in Sangoma Freepbx, published on 15 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2025-59056?

It affects 1 product.


Products: Sangoma Freepbx.

## How do I fix CVE-2025-59056?

No fix has been published for CVE-2025-59056 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-59056 being exploited?

There is no known exploitation of CVE-2025-59056 in the wild and no public exploit code.

## Other vulnerabilities in Sangoma Freepbx

- [CVE-2025-57819](https://insights.sbomify.com/CVE-2025-57819/): Sangoma FreePBX Authentication Bypass (critical 10.0, exploited in the wild)
- [CVE-2019-19006](https://insights.sbomify.com/CVE-2019-19006/): Sangoma FreePBX Improper Authentication (critical 9.8, exploited in the wild)
- [CVE-2026-73663](https://insights.sbomify.com/CVE-2026-73663/): FreePBX: Unauthenticated SQL injection in FreePBX missedcall via inbound Caller ID name leads to administrator takeover (critical 9.3)
- [CVE-2026-73665](https://insights.sbomify.com/CVE-2026-73665/): FreePBX UCP: Unauthenticated remote code execution via socket.io namespace auth bypass and AMI action injection (critical 9.3)
- [CVE-2026-46376](https://insights.sbomify.com/CVE-2026-46376/): FreePBX: Unauthenticated Use of Hard-Coded Credentials Vulnerability in FreePBX UCP Interface (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-59056 and fix it if it is affected.

What it is: CVE-2025-59056 is a medium-severity missing authorization vulnerability in Sangoma Freepbx, published on 15 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-59056 in the wild and no public exploit code.

Affected product: Sangoma Freepbx. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-59056/ (Markdown: https://insights.sbomify.com/CVE-2025-59056/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-59056
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-59056
- OSV: https://osv.dev/vulnerability/CVE-2025-59056

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-59056/
Summaries are generated and may contain mistakes; the official description above is the record.