CVE-2026-44091

Creation of a new configuration by posting a malicious ID to MQTT

State: Published
Severity: 8.8 High
Published: Jul 30, 2026
Updated: Jul 31, 2026
Reserved: May 5, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	8.8 High	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	CERTVDE
3.1	9.1 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H	CERTVDE

Weaknesses

CWE-501 Trust Boundary Violation

Affected Products

Product	Versions
CHARX SEC-3150Phoenix Contact	1.0.0 to before 1.9.1Affected
CHARX SEC-3100Phoenix Contact	1.0.0 to before 1.9.1Affected
CHARX SEC-3050Phoenix Contact	1.0.0 to before 1.9.1Affected
CHARX SEC-3000Phoenix Contact	1.0.0 to before 1.9.1Affected

References

https://www.certvde.com/en/advisories/VDE-2026-008/

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