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Critical 9.3Published May 29, 2026

CVE-2026-46376FreePBX: Unauthenticated Use of Hard-Coded Credentials Vulnerability in FreePBX UCP Interface

Updated under an hour ago ()

Does this affect you?

It affects FreePBX security-reporting and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

FreePBX is an open source IP PBX. From 15.0.42 to before 16.0.45 and 17.0.7, unauthenticated users may be able to access the User Control Panel (UCP) using hard-coded initial template credentials if these were not immediately changed by the Administrator who enabled UCP. Authenticated access to ACP is required for the initial setup of UCP generic templates, but after that, without further steps by the admin, unauthenticated users may be able to gain access. This vulnerability is fixed in 16.0.45 and 17.0.7.

CVSS
9.3 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness (CWE)
CWE-798
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
GitHub_M
NVD analysis
Analyzed
Record last updated
Sep 28, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
FreePBX security-reporting
freepbx:security_reporting (from the name)
from 15.0.42, < 16.0.45; from 17.0.1, < 17.0.7
CNA record
sangoma freepbx
sangoma:freepbx
before 16.0.45; from 17.0 before 17.0.7
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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