Quick answers
- Is CVE-2025-64328 exploited in the wild?
- Yes. CVE-2025-64328 is known to be exploited in the wild, first recorded on 3 February 2026. Treat it as urgent.
- How severe is CVE-2025-64328?
- Critical severity, with a CVSS score of 7.2, published 7 November 2025.
- Which products and versions are affected?
- Sangoma FreePBX Endpoint Manager 17.0.2.36 up to (but excluding) 17.0.3.
- Is there a fix for CVE-2025-64328?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2025-64328 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2025-64328?
- Check whether you run Sangoma Filestore, Sangoma FreePBX or Sangoma FreePBX Endpoint Manager at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An OS command injection vulnerability exists in the filestore module of FreePBX 17. The flaw is located within the check_ssh_connect() function of the testconnection.php driver, where user-supplied input is insufficiently sanitized before being passed to system execution functions like exec(). An attacker with administrative privileges to the FreePBX GUI can exploit this via the network to execute arbitrary shell commands as the 'asterisk' user. This vulnerability has been observed being exploited in the wild to deploy the 'EncystPHP' web shell. The issue is resolved in filestore module version 17.0.3.
Affected products
- Sangoma FreePBX Endpoint Manager (filestore module) 17.0.2.36 up to (but excluding) 17.0.3
Timeline
- 2025-11-07: disclosed
- 2025-11-07: advisory
- 2025-12-01: exploited: Exploitation observed in the wild by Fortinet researchers.
- 2026-01-28: other: FortiGuard Labs publishes research on EncystPHP web shell using this exploit.
- 2026-02-03: kev added
References
- https://github.com/FreePBX/filestore/blob/f0e3983059271efd80b483ec823310ef19a59013/drivers/SSH/testconnection.php
- https://github.com/FreePBX/security-reporting/security/advisories/GHSA-vm9p-46mv-5xvw
- https://www.freepbx.org/watch-what-we-do-with-security-fixes-%f0%9f%91%80
- https://www.fortinet.com/blog/threat-research/unveiling-the-weaponized-web-shell-encystphp