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CVE-2026-54674

8.8, high

FreePBX security-reporting OS Command Injection Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
8.8, high high CVSS v3.1
EPSS, next 30 days
0.6% higher than 47.6% of scored CVEs
Exploitation
No public evidence
Published
28 Sept 202619 days ago

Description

FreePBX is an open source IP PBX. Prior to versions 16.0.39 and 17.0.7, users authenticated via User Control Panel (UCP) are able to execute arbitrary commands on the PBX as the webserver user (typically asterisk) using specially crafted HTTP strings. Authenticated access to UCP is required. Note that this is often more common for less-privileged users to have UCP access vs. the Administrator Control Panel (ACP) access (which is usually FreePBX higher-level administrator accounts only). Insufficient sanitization of certain URL parameters utilized by UCP did not fully account for malicious strings in these fields. This could result in binaries being executed on the host server by carefully chaining commands. This issue has been patched in versions 16.0.39 and 17.0.7.

Details

Vendor
FreePBX
Product
security-reporting
Weakness
CWE-78 (opens in a new tab)
Status
Analyzed
Updated
16 Oct 2026
Assigner
security-advisories@github.com

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References 1

Advisories 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other FreePBX CVEs

Every FreePBX CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-45562 FreePBX security-reporting OS Command Injection Vulnerability EPSS 0.3% 7.2, high
  • CVE-2026-54675 FreePBX security-reporting Path Traversal Vulnerability EPSS 0.6% 8.8, high
  • CVE-2026-54708 FreePBX security-reporting Path Traversal Vulnerability EPSS 0.5% 8.8, high
  • CVE-2026-54710 FreePBX security-reporting Improper Input Validation Vulnerability EPSS 0.4% 8.8, high
  • CVE-2026-75600 FreePBX security-reporting OS Command Injection Vulnerability EPSS 0.8% 8.8, high

Beyond this page

Is CVE-2026-54674 in your network?

This page tells you how dangerous CVE-2026-54674 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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    Find it before attackers do

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.