Post-Authentication Command Injection Vulnerability in FreePBX Endpoint Manager
CVE-2025-64328

8.6HIGH

Key Information:

Vendor

Freepbx

Status
Security-reporting
Vendor
CVE Published:
7 November 2025

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 20%🦅 CISA Reported

What is CVE-2025-64328?

The FreePBX Endpoint Manager, specifically in versions 17.0.2.36 and later up to 17.0.2.39, contains a command injection vulnerability in its filestore module. This occurs after authentication and can be exploited by an authenticated user through the testconnection -> check_ssh_connect() function. By executing this attack, an unauthorized user may gain remote access to the system as an 'asterisk' user, potentially leading to further unauthorized actions within the FreePBX environment. This vulnerability has been addressed in version 17.0.3.

CISA has reported CVE-2025-64328

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2025-64328 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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Affected Version(s)

security-reporting >= 17.0.2.36, < 17.0.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-64328_FreePBX-framework-Command-Injection
Created by mcorybillington

References

https://github.com/FreePBX/security-reporting/security/ad...
x_refsource_CONFIRM
https://github.com/FreePBX/filestore/blob/f0e3983059271ef...
x_refsource_MISC
https://www.freepbx.org/watch-what-we-do-with-security-fi...
x_refsource_MISC

EPSS Score

20% chance of being exploited in the next 30 days.

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🦅

    CISA Reported

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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