How severe is CVE-2019-19006?

CVE-2019-19006 has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2019-19006?

Affected package information for CVE-2019-19006 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2019-19006?

No fixed version has been published for CVE-2019-19006 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2019-19006 actively exploited in the wild?

Yes. There are 1 known exploit references for CVE-2019-19006, including 1 in-the-wild exploitation observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2019-19006?

CVE-2019-19006 has an EPSS (Exploit Prediction Scoring System) score of 21.6%, placing it in the 96th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score warrants monitoring and prompt remediation.

Is CVE-2019-19006 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2019-19006 ( Sangoma FreePBX Improper Authentication Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-02-03. CISA required all US federal civilian agencies to remediate this vulnerability by 2026-02-24. The required action was: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2019-19006?

CVE-2019-19006 is classified as Improper Authentication (CWE-287). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2019-19006 published, and has it been updated?

CVE-2019-19006 was published on November 21, 2019 and was last updated on April 10, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2026-02-03 — agencies required to remediate by 2026-02-24

CVE-2019-19006

CRITICAL

Published

Nov 21, 2019

Updated

Apr 10, 2026

Affected

0 pkgs

Patched

None yet

Exploits

1 known

EPSS Exploitation Probability

via FIRST.org ↗

21.6%probability of exploitation in next 30 days

Moderate Risk96th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

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.

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Sangoma FreePBX 115.0.16.26 and below, 14.0.13.11 and below, 13.0.197.13…

research.checkpoint.comAPINov 2020

Frequently Asked Questions

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

O3 Security · Impact-Aware SCA

Is CVE-2019-19006 in your stack?

O3 detects CVE-2019-19006 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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