CVE-2025-57819

Sangoma FreePBX: Authentication Bypass

As of , CVE-2025-57819 in Sangoma FreePBX is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.

Exploited
Yes: CISA listed it on 29 August 2025
US federal deadline
19 September 202521 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
EPSS score
0.85Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
Public exploit
1 Metasploit module and 1 Exploit-DB entry
Fix
Vendor advice: github.comLinks below, from CISA's entry.

What CISA says to do

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

CISA's required action

What the flaw is

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.

CISA's 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.

The CVE record's description, from GitHub_M

CVE published
28 August 2025
Assigned by
GitHub_M
CVSS
10.0 Critical (CVSS 4.0, from the CNA)
CWE-89
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CWE-288
Authentication Bypass Using an Alternate Path or Channel
CISA SSVC, exploitation
active
CISA SSVC, automatable
yes
CISA SSVC, technical impact
total

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.
  4. Exploit-DB published an exploit (EDB-ID 52681).

Public exploits

Facts from Metasploit's module list and Exploit-DB's index; we never copy exploit code.

FreePBX: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2025-64328OS Command InjectionSangoma FreePBXPatch this weekMetasploit module; EPSS 0.850.85
CVE-2019-19006Improper AuthenticationSangoma FreePBXPatch this weekEPSS 0.560.56

Read further