CVE-2019-19006KEV · OVERDUE

Sangoma FreePBX Improper Authentication Vulnerability

Critical · published November 21, 2019

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.8. It is confirmed in active exploitation. It sits in the 99.0th percentile for exploit probability.

241
days past CISA
deadline
CVSS v3.1
9.8
EPSS
56%
Percentile
99.0
In the wild
Confirmed
What it is

🚨 A tiny oversight in Sangoma FreePBX could let anyone waltz right in, bypassing access controls completely! 🔥 Think of it like a hotel that accidentally left a few room keys unguarded in the lobby — without checking who takes them, any guest could wander into restricted areas! An attacker could exploit this access control flaw to gain unauthorized access, potentially leading to devastating consequences. This means they could tamper with configurations, eavesdrop on calls, or disrupt services, putting sensitive communications at risk!

Put simply

Think of it like a hotel that accidentally left a few room keys unguarded in the lobby — without checking who takes them, any guest could wander into restricted areas! FreePBX versions 115.0.16.26 and below, 14.0.13.11 and below, and 13.0.197.13 and below lack proper access control checks, allowing malicious users to gain privileges they shouldn't have.

What to do

An attacker could exploit this access control flaw to gain unauthorized access, potentially leading to devastating consequences. This means they could tamper with configurations, eavesdrop on calls, or disrupt services, putting sensitive communications at risk! Update your FreePBX system immediately to versions 15.0.16.26 or higher, 14.0.13.12 or higher, and 13.0.197.14 or higher. Also, review your access control settings to ensure they're configured correctly! You've got this! Follow these steps to lock down your FreePBX and bolster your defenses! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.55946 · 99.0th percentile
Published
2019-11-21T17:51Z
KEV added
2026-02-03 · due 2026-02-24
EPSS history
Timeline
  • 25 SEP 03:10Z
    EPSS moved 37% → 56%
    epss
  • 03 FEB 00:00Z
    Added to CISA KEV — remediate by Feb 24
    kev
  • 21 NOV 17:51Z
    Sangoma FreePBX 115.0.16.26 and below, 14.0.13.11 and below, 13.0.197.13 and below have Incorrect Access Control
    cvelistv5