Threats / Sangoma / CVE-2019-19006
CVE-2019-19006
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-08-04
Sangoma FreePBX vulnerability
Sangoma FreePBX contains an improper authentication vulnerability allowing unauthorized access to admin services by bypassing password authentication.
Verdict
Today item — known-exploited.
An authentication bypass in FreePBX permits unauthenticated attackers to gain administrative access without valid credentials, enabling unauthorized system control and configuration changes.
CISA KEV Yes · 2026-02-034EPSS 0.36615 (verify live)5CVSS 9.8 (CISA)3CISA SSVC Exploitation: active · Automatable: yes · Impact: total3
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
4 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-02-03).
Probability (EPSS)
EPSS 0.36615 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) · Affected: Sangoma, FreePBX. Confirm exact fixed builds in the vendor advisory.CVSS — CISA-assigned via the ADP container (CVE.org), version 3.1; the CNA left no metrics, so CISA's own score is used ahead of NVD.
Weakness (CWE)
Mapped to CWE-287 Improper Authentication — weakness family: Authentication.CWE assignment from the public NVD record (may be stale); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: yes · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog 2266 days after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I identify that FreePBX authentication can be bypassed without providing valid credentials.
Business
Administrative access controls fail, exposing the PBX system to unauthorized configuration and data access.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I gain administrative privileges to the FreePBX management interface through the authentication flaw.
Business
Attackers obtain full control over voice communication infrastructure and user data stored in the system.
3
Lateral reach — past segmentation narrative 3
Attacker
I modify system settings, create rogue accounts, or extract sensitive information from the compromised PBX.
Business
Business continuity is disrupted; call routing, voicemail, and user credentials are compromised or altered.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05