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Vulnerabilities

Vulnerability · CVE-2025-55211

FreePBX is an open-source web-based graphical user interface.

Published Sep 15, 2025 · catalog updated Feb 13, 2026 · FreePBX

Check if you run it

No confirmed exploitation is on record for CVE-2025-55211. EPSS is 0.44%. Act only if a listed version of FreePBX is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.44%
Remediation
Version ranges on file
Affected products
vendor FreePBX framework 17.0.19.11, < 17.0.21

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor FreePBX framework 17.0.19.11, < 17.0.2117.0.19.11, < 17.0.21

How to fix CVE-2025-55211

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-55211. EPSS is 0.44%. Act only if a listed version of FreePBX is installed.

Which versions are affected?

Compare what you have installed with FreePBX framework 17.0.19.11, < 17.0.21 17.0.19.11, < 17.0.21. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.44%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 15, 2025 · EUVD

    Detected

    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.

  2. Feb 13, 2026 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-55211

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-55211

    30-day exploitation probability 0.44%

    first.org
  • EUVDVulnerability recordEUVD-2025-29256

    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

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.