CVE-2025-64328
Sangoma FreePBX OS Command Injection Vulnerability - [Actively Exploited]
Description
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 -> check_ssh_connect() 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.
INFO
Published Date :
Nov. 7, 2025, 4:15 a.m.
Last Modified :
Feb. 4, 2026, 6 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
Sangoma FreePBX Endpoint Manager contains an OS command injection vulnerability that could allow for a post-authentication command injection by an authenticated known user via the testconnection -> check_ssh_connect() function. An attacker can leverage this vulnerability to potentially obtain remote access to the system as an asterisk user.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
https://github.com/FreePBX/security-reporting/security/advisories/GHSA-vm9p-46mv-5xvw ; https://nvd.nist.gov/vuln/detail/CVE-2025-64328
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Upgrade the FreePBX Endpoint Manager module.
- Ensure the system is running version 17.0.3 or later.
Public PoC/Exploit Available at Github
CVE-2025-64328 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-64328.
| URL | Resource |
|---|---|
| https://github.com/FreePBX/filestore/blob/f0e3983059271efd80b483ec823310ef19a59013/drivers/SSH/testconnection.php#L2 | Product |
| https://github.com/FreePBX/security-reporting/security/advisories/GHSA-vm9p-46mv-5xvw | Exploit Vendor Advisory |
| https://www.freepbx.org/watch-what-we-do-with-security-fixes-%f0%9f%91%80 | Vendor Advisory |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-64328 | Third Party Advisory US Government Resource |
| https://www.fortinet.com/blog/threat-research/unveiling-the-weaponized-web-shell-encystphp | Exploit Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-64328 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-64328
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
CVE-2025-64328 FreePBX Authenticated Command Injection in the framework module.
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-64328 vulnerability anywhere in the article.
-
security.nl
FreePBX-servers via recente kwetsbaarheid geïnfecteerd met webshell
Aanvallers maken actief misbruik van een recente kwetsbaarheid in FreePBX om servers met een webshell te infecteren. Dat laat Fortinet in een analyse weten. Ook het Amerikaanse cyberagentschap CISA me ... Read more
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The Hacker News
CISA Adds Actively Exploited SolarWinds Web Help Desk RCE to KEV Catalog
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added a critical security flaw impacting SolarWinds Web Help Desk (WHD) to its Known Exploited Vulnerabilities (KEV) catalog ... Read more
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TheCyberThrone
CISA’s adds 4 vulnerabilitis to KEV Catalog
On February 3, 2026, the Cybersecurity and Infrastructure Security Agency (CISA) updated its Known Exploited Vulnerabilities (KEV) Catalog with four significant vulnerabilities—each backed by evidence ... Read more
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Daily CyberSecurity
Silent Intruder: “EncystPHP” Web Shell Burrows into FreePBX Systems
The EncystPHP file flow | Image: FortiGuard Labs A sophisticated new web shell has been discovered burrowing into communication infrastructure, leveraging a critical vulnerability to turn innocent pho ... Read more
-
CybersecurityNews
Hackers Exploiting FreePBX Vulnerability to Deploy Webshell and Gain Control of Systems
A sophisticated attack campaign leveraging a critical FreePBX vulnerability to deploy a persistent webshell dubbed “EncystPHP,” enabling threat actors to gain complete administrative control over comp ... Read more
The following table lists the changes that have been made to the
CVE-2025-64328 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Feb. 04, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:sangoma:freepbx:*:*:*:*:*:*:*:* versions from (including) 17.0.2.36 up to (excluding) 17.0.3 Added Reference Type GitHub, Inc.: https://github.com/FreePBX/filestore/blob/f0e3983059271efd80b483ec823310ef19a59013/drivers/SSH/testconnection.php#L2 Types: Product Added Reference Type GitHub, Inc.: https://github.com/FreePBX/security-reporting/security/advisories/GHSA-vm9p-46mv-5xvw Types: Exploit, Vendor Advisory Added Reference Type GitHub, Inc.: https://www.freepbx.org/watch-what-we-do-with-security-fixes-%f0%9f%91%80 Types: Vendor Advisory Added Reference Type CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-64328 Types: Third Party Advisory, US Government Resource Added Reference Type CISA-ADP: https://www.fortinet.com/blog/threat-research/unveiling-the-weaponized-web-shell-encystphp Types: Exploit, Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 03, 2026
Action Type Old Value New Value Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-64328 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 03, 2026
Action Type Old Value New Value Added Reference https://www.fortinet.com/blog/threat-research/unveiling-the-weaponized-web-shell-encystphp -
New CVE Received by [email protected]
Nov. 07, 2025
Action Type Old Value New Value Added Description 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 -> check_ssh_connect() 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-78 Added Reference https://github.com/FreePBX/filestore/blob/f0e3983059271efd80b483ec823310ef19a59013/drivers/SSH/testconnection.php#L2 Added Reference https://github.com/FreePBX/security-reporting/security/advisories/GHSA-vm9p-46mv-5xvw Added Reference https://www.freepbx.org/watch-what-we-do-with-security-fixes-%f0%9f%91%80