CVE-2026-40852

Command injection via malicious configuration

State: Published
Severity: 7.2 High
Published: May 27, 2026
Updated: May 27, 2026
Reserved: Apr 15, 2026

Description

A highly authenticated attacker can alter the config generator injecting a payload into future created configurations. The device is not correctly checking this configuration value before passing it to an system execute leading to code execution. This can result in a total loss of confidentiality, integrity and availability.

Scores

CVSS	Score	Vector	Source
3.1	7.2 High	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	CERTVDE

Weaknesses

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Affected Products

Product	Versions
mbNET/mbNET.rokeyMB connect line	0.0.0 through 8.4.4Affected
mbNET.miniMB connect line	0.0.0 through 3.0.2Affected
mbNET/mbNET.rokeyMB connect line	8.4.4Affected
mbNET.miniMB connect line	3.0.2Affected
REX200/250Helmholz	0.0.0 through 8.4.4Affected
REX100Helmholz	0.0.0 through 3.0.2Affected
REX200/250Helmholz	8.4.4Affected
REX100Helmholz	3.0.2Affected

References

https://www.certvde.com/en/advisories/VDE-2026-054/

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