Vulnerability record

CVE-2025-57819

Sangoma FreePBX Authentication Bypass Vulnerability

Severity: CriticalExploitation: Exploitation confirmedCISA KEV
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run FreePBX, fix it now.

CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

US federal civilian agencies must remediate by Sep 19, 2025.

Patch status

No official fix confirmed yet

Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.

Description

FreePBX is an open-source web-based graphical user interface. FreePBX 15, 16, and 17 endpoints are vulnerable due to insufficiently sanitized user-supplied data allowing unauthenticated access to FreePBX Administrator leading to arbitrary database manipulation and remote code execution. This issue has been patched in endpoint versions 15.0.66, 16.0.89, and 17.0.3.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

Products affected by this vulnerability, with versions and the source of each entry
ProductVendorAffected versionsFixed inSource
FreePBXSangoma>= 15.0, < 15.0.66; >= 16.0, < 16.0.89; >= 17.0, < 17.0.315.0.66; 16.0.89; 17.0.3KEV

Sources: KEV = CISA Known Exploited Vulnerabilities catalog.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2025-57819 scored CVSS 10.0: Sangoma FreePBX, Sangoma FreePBX Authentication Bypass Vulnerability

    CISA lists this as exploited in the wild. Unpatched FreePBX systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

1 earlier event is available with a subscription. See plans.

Coverage

We have not published a story about this vulnerability yet.

References

  • github.com https://github.com/FreePBX/security-reporting/security/advisories/GHSA-m42g-xg4c-5f3h
  • nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2025-57819
  • community.freepbx.org https://community.freepbx.org/t/security-advisory-please-lock-down-your-administrator-access/107203
  • github.com https://github.com/watchtowrlabs/watchTowr-vs-FreePBX-CVE-2025-57819
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-57819