High severity · published Sep 15, 2025
CVE-2025-59056
FreePBX vulnerable to unauthenticated Denial of Service
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
FreePBX is an open-source web-based graphical user interface. In FreePBX 15, 16, and 17, malicious connections to the Administrator Control Panel web interface can cause the uninstall function to be triggered for certain modules. This function drops the module's database tables, which is where most modules store their configuration. This vulnerability is fixed in 15.0.38, 16.0.41, and 17.0.21.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
framework · FreePBX
< 15.0.38; >= 16.0.0, < 16.0.41; >= 17.0.0, < 17.0.21 · source: vendor
FR
Freepbx · Sangoma
15.0 before 15.0.38; 16.0 before 16.0.41; 17.0 before 17.0.21 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59056
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-59056
Product
https://github.com/FreePBX/framework/blame/release/17.0/amp_conf/htdocs/admin/ajax.php#L18
Mitigation
https://github.com/FreePBX/security-reporting/security/advisories/GHSA-frc2-jhgg-rwpr
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