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CVE-2026-45562

7.2, high

FreePBX security-reporting OS Command Injection Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.2, high high CVSS v3.1
EPSS, next 30 days
0.3% higher than 21.3% of scored CVEs
Exploitation
No public evidence
Published
28 Sept 202619 days ago

Description

FreePBX is an open source IP PBX. Prior to versions 16.0.4 and 17.0.6, the FreePBX Music on Hold (MoH) module contains a critical security flaw that allows authenticated attackers to execute arbitrary system commands with the privileges of the Asterisk service. Authentication with an existing FreePBX administrator account is required. The root cause lies in the fact that the module accepts a POST parameter that defines a custom Asterisk application, which is then stored in the database without any sanitization. Later, this data is written directly to the musiconhold_additional.conf configuration file without validation. Since Asterisk reads this configuration file and executes the specified application, an attacker can inject arbitrary commands that will be executed with Asterisk's permissions. This issue has been patched in versions 16.0.4 and 17.0.6.

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:H/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-2026-54674 FreePBX security-reporting OS Command Injection Vulnerability EPSS 0.6% 8.8, 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-2026-45562 in your network?

This page tells you how dangerous CVE-2026-45562 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.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-45562 comes with the devices to patch.

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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.