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CVE-2025-57819

Sangoma FreePBX Authentication Bypass

9.8 CRITICALActively exploited (CISA KEV)Public exploitEPSS 86.3%
  1. Published28 Aug 2025
  2. Added to CISA KEV29 Aug 2025
  3. Remediation due19 Sept 2025
Actively exploited (CISA KEV)

Sangoma FreePBX contains an authentication bypass vulnerability due to insufficiently sanitized user-supplied data allows unauthenticated access to FreePBX Administrator leading to arbitrary database manipulation and remote code execution.

Added to KEV: 29 Aug 2025Federal remediation due: 19 Sept 2025

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Sangoma Freepbx≥ 15.0 < 15.0.66 · ≥ 16.0 < 16.0.89 · ≥ 17.0 < 17.0.3

Remediation

Fixed in
Sangoma Freepbx≥ 15.0.66

References

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Frequently asked

Is CVE-2025-57819 being actively exploited?

Yes. CVE-2025-57819 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 29 Aug 2025.

How severe is CVE-2025-57819?

CVE-2025-57819 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 86.3% probability of exploitation.

Which products are affected by CVE-2025-57819?

Affected products include Sangoma Freepbx.

How do I fix CVE-2025-57819?

Upgrade affected software to a fixed version, for example Sangoma Freepbx 15.0.66 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-57819 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.