CVE entry · CVE-2025-64328
CVE-2025-64328: Sangoma FreePBX OS Command Injection Vulnerability
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.
- Actively exploited: added to CISA’s KEV catalog on February 3, 2026.
- Use by ransomware: not established so far.
- Remediation deadline for US federal agencies: February 24, 2026.
Description from CISA’s KEV catalog.
What to do
- Check whether your estate includes Sangoma FreePBX , including internet-facing devices.
- Apply the vendor’s patch or mitigations (references below). Failing that, isolate the product or stop using it, as CISA requires of US federal agencies.
- An exploited vulnerability has often been used before it was fixed: look for signs of compromise, especially on internet-facing devices.