CVE-2019-19006 Sangoma FreePBX: login or permission bypass
In plain words: A door that should be locked is not: part of the system can be reached without a valid login or permission. The attacker gets in as a user or administrator without knowing a password.
Confirmed exploited by CISA on · US federal patch deadline Feb 24, 2026
What to do
- Install Sangoma's security update for FreePBX. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Keep a list of every internet-facing server you run so nothing is forgotten.
- Patch anything in this catalog first, ahead of normal patch cycles.
- Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.
The details
- Official name
- Sangoma FreePBX Improper Authentication Vulnerability
- Product
- Sangoma FreePBX
- CISA 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.
- Type of flaw
- Login or permission bypass (CWE-287)
- Confirmed exploited
- Feb 3, 2026
- US federal patch deadline
- Feb 24, 2026
Ask Cleus about it
Ask about a vulnerability, an update, a weird message, or the news. Plain-word answers, free, no account.
Answering about CVE-2019-19006 ·
Questions about CVE-2019-19006
Is CVE-2019-19006 being exploited?
Yes. CISA added CVE-2019-19006 to its Known Exploited Vulnerabilities catalog on Feb 3, 2026, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2019-19006?
Install Sangoma's security update for FreePBX. If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.
Am I affected by CVE-2019-19006?
Only if you use Sangoma FreePBX. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.