---
title: "CVE-2025-64328: Sangoma FreePBX OS Command Injection Vulnerability"
url: https://erroneo.us/security/cve/CVE-2025-64328/
description: "CVE-2025-64328 (Sangoma FreePBX): Exploited in the wild (CISA KEV). FreePBX Endpoint Manager is a module for managing telephony endpoints in FreePBX…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-11-07
date_modified: 2026-02-13
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-64328"
kev: true
cvss: 8.6
epss: 0.84618
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-64328: Sangoma FreePBX OS Command Injection Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run Sangoma FreePBX. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2026-02-03, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2026-02-24 ; treat that as the outer limit, not the target.
- EPSS 84.6% , percentile 99.7: FIRST’s model estimates a 84.6% chance of exploitation activity in the next 30 days, higher than 99.7% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Needs an account (high (admin)). Exposure depends on who can log in.

## What it is

FreePBX Endpoint Manager is a module for managing telephony endpoints in FreePBX systems. In versions 17.0.2.36 and above before 17.0.3, the filestore module within the Administrative interface is vulnerable to a post-authentication command injection by an authenticated known user via the testconnection -> checksshconnect() function. An attacker can leverage this vulnerability to obtain remote access to the system as an asterisk user. This issue is fixed in version 17.0.3.

## Affected products (CVE record)

- FreePBX filestore: >= 17.0.2.36, < 17.0.3

## Severity

- GitHub_M CVSS 4.0: 8.6 `CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`

## Exploitation

- CISA KEV: added 2026-02-03; federal due date 2026-02-24. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 84.62% probability of exploitation activity in the next 30 days; percentile 99.7.

## Sources

- [Listed in CISA KEV notes (github.com)](https://github.com/FreePBX/security-reporting/security/advisories/GHSA-vm9p-46mv-5xvw)
- [CVE.org record CVE-2025-64328](https://www.cve.org/CVERecord?id=CVE-2025-64328)
- [NVD entry CVE-2025-64328](https://nvd.nist.gov/vuln/detail/CVE-2025-64328)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-64328)
- [github.com](https://github.com/FreePBX/filestore/blob/f0e3983059271efd80b483ec823310ef19a59013/drivers/SSH/testconnection.php#L2)
- [freepbx.org](https://www.freepbx.org/watch-what-we-do-with-security-fixes-%f0%9f%91%80)
- [fortinet.com](https://www.fortinet.com/blog/threat-research/unveiling-the-weaponized-web-shell-encystphp)

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Source page: https://erroneo.us/security/cve/CVE-2025-64328/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt