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Known Exploited Vulnerability
9.8
CRITICAL CVSS 3.1
CVE-2019-19006
Sangoma FreePBX Improper Authentication Vulnerability - [Actively Exploited]
Description

Sangoma FreePBX 115.0.16.26 and below, 14.0.13.11 and below, 13.0.197.13 and below have Incorrect Access Control.

INFO

Published Date :

Nov. 21, 2019, 6:15 p.m.

Last Modified :

Feb. 4, 2026, 3:56 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Sangoma FreePBX contains an improper authentication vulnerability that potentially allows unauthorized users to bypass password authentication and access services provided by the FreePBX admin.

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.

Notes :

https://wiki.freepbx.org/display/FOP/2019-11-20%2BRemote%2BAdmin%2BAuthentication%2BBypass ; https://nvd.nist.gov/vuln/detail/CVE-2019-19006

Affected Products

The following products are affected by CVE-2019-19006 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Sangoma freepbx
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 HIGH [email protected]
CVSS 3.1 CRITICAL [email protected]
CVSS 3.1 CRITICAL 134c704f-9b21-4f2e-91b3-4a467353bcc0
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-19006.

URL Resource
https://community.freepbx.org/t/freepbx-security-vulnerability-sec-2019-001/62772 Vendor Advisory
https://pastebin.com/2CdsQMKW Broken Link
https://wiki.freepbx.org/display/FOP/2019-11-20+Remote+Admin+Authentication+Bypass Vendor Advisory
https://www.freepbx.org/category/blog/ Product
https://community.freepbx.org/t/freepbx-security-vulnerability-sec-2019-001/62772 Vendor Advisory
https://pastebin.com/2CdsQMKW Broken Link
https://wiki.freepbx.org/display/FOP/2019-11-20+Remote+Admin+Authentication+Bypass Vendor Advisory
https://www.freepbx.org/category/blog/ Product
https://research.checkpoint.com/2020/inj3ctor3-operation-leveraging-asterisk-servers-for-monetization/ Exploit Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-19006 US Government Resource
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-19006 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-19006 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-19006 vulnerability anywhere in the article.

  • The Hacker News
CISA Adds Actively Exploited SolarWinds Web Help Desk RCE to KEV Catalog

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added a critical security flaw impacting SolarWinds Web Help Desk (WHD) to its Known Exploited Vulnerabilities (KEV) catalog ... Read more

Published Date: Feb 04, 2026 (1 day, 21 hours ago)
  • TheCyberThrone
CISA’s adds 4 vulnerabilitis to KEV Catalog

On February 3, 2026, the Cybersecurity and Infrastructure Security Agency (CISA) updated its Known Exploited Vulnerabilities (KEV) Catalog with four significant vulnerabilities—each backed by evidence ... Read more

Published Date: Feb 04, 2026 (2 days, 2 hours ago)
  • Daily CyberSecurity
Silent Intruder: “EncystPHP” Web Shell Burrows into FreePBX Systems

The EncystPHP file flow | Image: FortiGuard Labs A sophisticated new web shell has been discovered burrowing into communication infrastructure, leveraging a critical vulnerability to turn innocent pho ... Read more

Published Date: Feb 02, 2026 (4 days, 2 hours ago)
  • CybersecurityNews
Hackers Exploiting FreePBX Vulnerability to Deploy Webshell and Gain Control of Systems

A sophisticated attack campaign leveraging a critical FreePBX vulnerability to deploy a persistent webshell dubbed “EncystPHP,” enabling threat actors to gain complete administrative control over comp ... Read more

Published Date: Jan 29, 2026 (1 week ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2019-19006 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Modified Analysis by [email protected]

    Feb. 04, 2026

    Action Type Old Value New Value
    Added Reference Type CISA-ADP: https://research.checkpoint.com/2020/inj3ctor3-operation-leveraging-asterisk-servers-for-monetization/ Types: Exploit, Third Party Advisory
    Added Reference Type CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-19006 Types: US Government Resource
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Feb. 03, 2026

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-19006
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Feb. 03, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-287
    Added Reference https://research.checkpoint.com/2020/inj3ctor3-operation-leveraging-asterisk-servers-for-monetization/
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://community.freepbx.org/t/freepbx-security-vulnerability-sec-2019-001/62772
    Added Reference https://pastebin.com/2CdsQMKW
    Added Reference https://wiki.freepbx.org/display/FOP/2019-11-20+Remote+Admin+Authentication+Bypass
    Added Reference https://www.freepbx.org/category/blog/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Aug. 24, 2020

    Action Type Old Value New Value
    Changed CWE CWE-863 CWE-287
  • Reanalysis by [email protected]

    Dec. 11, 2019

    Action Type Old Value New Value
  • CPE Deprecation Remap by [email protected]

    Dec. 10, 2019

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:freepbx:freepbx:*:*:*:*:*:*:*:* versions from (including) 15.0.0.0 from (including) 15.0.16.26 OR *cpe:2.3:a:sangoma:freepbx:*:*:*:*:*:*:*:* versions from (including) 15.0.0.0 from (including) 15.0.16.26
  • CPE Deprecation Remap by [email protected]

    Dec. 10, 2019

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:freepbx:freepbx:*:*:*:*:*:*:*:* versions from (including) 14.0.0.0 from (including) 14.0.13.11 OR *cpe:2.3:a:sangoma:freepbx:*:*:*:*:*:*:*:* versions from (including) 14.0.0.0 from (including) 14.0.13.11
  • CPE Deprecation Remap by [email protected]

    Dec. 10, 2019

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:freepbx:freepbx:*:*:*:*:*:*:*:* versions from (including) 13.0.0.0 from (including) 13.0.197.13 OR *cpe:2.3:a:sangoma:freepbx:*:*:*:*:*:*:*:* versions from (including) 13.0.0.0 from (including) 13.0.197.13
  • Initial Analysis by [email protected]

    Dec. 06, 2019

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://community.freepbx.org/t/freepbx-security-vulnerability-sec-2019-001/62772 No Types Assigned https://community.freepbx.org/t/freepbx-security-vulnerability-sec-2019-001/62772 Vendor Advisory
    Changed Reference Type https://pastebin.com/2CdsQMKW No Types Assigned https://pastebin.com/2CdsQMKW Broken Link
    Changed Reference Type https://wiki.freepbx.org/display/FOP/2019-11-20+Remote+Admin+Authentication+Bypass No Types Assigned https://wiki.freepbx.org/display/FOP/2019-11-20+Remote+Admin+Authentication+Bypass Vendor Advisory
    Changed Reference Type https://www.freepbx.org/category/blog/ No Types Assigned https://www.freepbx.org/category/blog/ Product
    Added CWE NIST CWE-863
    Added CPE Configuration OR *cpe:2.3:a:freepbx:freepbx:*:*:*:*:*:*:*:* versions from (including) 13.0.0.0 up to (including) 13.0.197.13 *cpe:2.3:a:freepbx:freepbx:*:*:*:*:*:*:*:* versions from (including) 14.0.0.0 up to (including) 14.0.13.11 *cpe:2.3:a:freepbx:freepbx:*:*:*:*:*:*:*:* versions from (including) 15.0.0.0 up to (including) 15.0.16.26
  • CVE Modified by [email protected]

    Nov. 22, 2019

    Action Type Old Value New Value
    Added Reference https://pastebin.com/2CdsQMKW [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 9.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 7.5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

31.61 }} -0.09%

score

0.96667

percentile