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CVE-2025-57819

CRITICAL9.8
CISA KEV

Published 2025-08-28 · Updated 2026-09-26 · Source security-advisories@github.com

Summary

CVE-2025-57819 is a critical-severity (CVSS 9.8) vulnerability in Sangoma FreePBX. CISA added it to the Known Exploited Vulnerabilities catalog on August 29, 2025, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by September 19, 2025. CISA does not currently list it as used in ransomware campaigns. Sangoma has 4 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.

All 4 known-exploited Sangoma vulnerabilities →

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 vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-89CWE-288

CISA Known-Exploited Vulnerability

Product: Sangoma — FreePBX

Name: Sangoma FreePBX Authentication Bypass Vulnerability

Date added: 2025-08-29 · Due: 2025-09-19

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.

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