RCE in Freepbx Security-Reporting
CVE-2026-28209
FreePBX is an open source IP PBX. From versions 16.0.17.2 to before 16.0.20 and from version 17.0.2.4 to before 17.0.5, a command injection vulnerability exists in FreePBX when using the ElevenLabs Text-to-Speech (TTS) engine in the recordings module. This issue has been patched in versions 16.0.20 and 17.0.5.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.014 (71.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.014 · change: +0.005
Affected products
- Freepbx Security-Reporting — versions >= 16.0.17.2, < 16.0.20, >= 17.0.2.4, < 17.0.5
- Sangoma Freepbx
Weakness classification (CWE)
References
- github.com/FreePBX/security-reporting/security/advisories/GHSA-f558-mp87-58vj (Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-28209?
- CVE-2026-28209 is a high-severity vulnerability in Freepbx Security-Reporting, classified under OS Command Injection. CVSS score: 7.2/10. Published 2026-03-05.
- How severe is CVE-2026-28209?
- High severity. CVSS v3 base score is 7.2 out of 10.