CVE-2025-57819
critical CISA KEVSangoma FreePBX Authentication Bypass Vulnerability
Vendor / product: Sangoma — FreePBX
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
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2025-08-28 17:15
Modified: 2026-09-26 00:10
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 07:07 UTC
Exploitation
Listed in CISA KEV
Added 2025-08-29 · due 2025-09-19
Known ransomware use: Unknown
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected products
sangoma / freepbx ≥15.0 <15.0.66, ≥16.0 <16.0.89, ≥17.0 <17.0.3
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://community.freepbx.org/t/security-advisory-please-lock-down-your-administrator-access/107203
References
- https://community.freepbx.org/t/security-advisory-please-lock-down-your-administrator-acce... security-advisories@github.com
- https://github.com/FreePBX/security-reporting/security/advisories/GHSA-m42g-xg4c-5f3h security-advisories@github.com
- https://github.com/watchtowrlabs/watchTowr-vs-FreePBX-CVE-2025-57819 134c704f-9b21-4f2e-91b3-4a467353bcc0
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-57819 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
CISA KEV — fetched 2026-10-27 06:50 UTC · record ↗
NVD CVE API 2.0 — fetched 2026-10-27 07:07 UTC · record ↗