Trust Boundary Violation in Phoenix Contact GmbH products - CVE-2026-44091
Published: July 31, 2026
Vulnerability identifier: #VU140628
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-44091
CWE-ID: CWE-501
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Affected software:
CHARX SEC-3000
CHARX SEC-3050
CHARX SEC-3100
CHARX SEC-3150
CHARX SEC-3000
CHARX SEC-3050
CHARX SEC-3100
CHARX SEC-3150
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to trust boundary violation within the MQTT service. A remote attacker can post a malicious ID to the MQTT Broker and create new configuration entry in the system configuration.
How to mitigate CVE-2026-44091
Install updates from vendor's website.