---
id: CVE-2026-44091
title: >-
  An unauthenticated remote attacker can post a malicious ID to the MQTT Broker
  results in the creation of a new configuration entry in the system
  configuration
summary: >-
  An unauthenticated remote attacker can post a malicious ID to the MQTT Broker
  results in the creation of a new configuration entry in the system
  configuration. This may lead to integrity and availability loss.
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H'
cwe:
  - CWE-501
published: '2026-07-30'
updated: '2026-07-31'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-44091'
references:
  - url: 'https://www.certvde.com/en/advisories/VDE-2026-008/'
    label: info@cert.vde.com
tags:
  - nvd
epss: 0.00589
epssPercentile: 0.45867
ingestedAt: '2026-08-01T21:14:39.767Z'
---

## Overview

An unauthenticated remote attacker can post a malicious ID to the MQTT Broker results in the creation of a new configuration entry in the system configuration. This may lead to integrity and availability loss.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.