High severity · published Sep 15, 2025
CVE-2025-55211
FreePBX Post-Authenticated Command Injection
8.8
CVSS
0.4%
EPSS
No
On KEV
Description
FreePBX is an open-source web-based graphical user interface. From 17.0.19.11 to before 17.0.21, authenticated users of the Administrator Control Panel (ACP) can run arbitrary shell commands by maliciously changing languages of the framework module. This vulnerability is fixed in 17.0.21.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
framework · FreePBX
>= 17.0.19.11, < 17.0.21 · source: vendor
FR
Freepbx · Sangoma
17.0.19.11 before 17.0.21 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-55211
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-55211
Mitigation
https://github.com/FreePBX/security-reporting/security/advisories/GHSA-xg83-m6q5-q24h
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