Sangoma · Code execution
Sangoma FreePBX OS Command Injection Vulnerability
At a glance
Actively exploited in the wild — prioritise confirming exposure.
Medium rather than High: exposure is scored at a default because we cannot see your systems or suppliers. If you run or depend on Sangoma FreePBX, treat it as High.
Briefing
- Do not treat uncorroborated claims as confirmed breaches.
Questions to ask IT
- Do we run Sangoma FreePBX, and is every instance on version 17.0.3 or later?
- Is any of it reachable from the internet?
- Have we checked whether it has already been used against us?
- If it is not yet patched, what mitigation is in place, and will the fix be done by 16 Nov?
Next steps
- Confirm exposure, mitigation status and any service interruption risk.
Vulnerability facts
Full CVE detail CVE-2025-64328- 8.6 · HighExploitable over the network with an administrator-level account, and no one has to click or open anything. High impact on confidentiality, integrity and availability.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/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
- Listed: attacks using it have been seen (on the catalogue since )
- Elevated attack likelihood (~84.6% in 30 days)
- Before 17.0.3
- 17.0.3
Versions are as the CVE record states them; check the vendor advisory before planning a fix.
No technical write-up beyond these facts and the summary below yet.
Next steps
- Confirm whether affected products/versions are present and prioritise patching or mitigations
Summary
- 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.
- CVE-2025-64328 is listed in known-exploited catalogue (exploitation in the wild)
- Authoritative catalogues report active exploitation of this vulnerability.
Why this matters in the UK
- Known-exploited catalogue reports exploitation in the wild
Products and services involved
- Sangoma FreePBX82% match confidence · CVE-2025-64328
Pulse
Last checked 3d ago · Recheck overdue since 10 Nov 2026, 02:35 UK time · 3 quiet checks collapsed
Suggested changed to 7d.
Listed on the — prioritise confirming exposure and patching.
2 quiet checks hidden.
Sources
Sangoma FreePBX OS Command Injection Vulnerability
How we know
Statements extracted from sources. Higher confidence means stronger corroboration.
- ConfirmedHeadline90% confidence
Sangoma FreePBX OS Command Injection Vulnerability
- ConfirmedSummary fact75% confidence
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. Affects Sangoma FreePBX. Known ransomware campaign use: Unknown.
- ConfirmedCVE identifier95% confidence
Event involves CVE-2025-64328
- ConfirmedKnown-exploited catalogue98% confidence
CVE-2025-64328 is listed in known-exploited catalogue (exploitation in the wild)