CVE-2026-40852

High

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.

SeverityHigh
CVSS7.2
Exploit probability—
ProductmbNET/mbNET.rokey
PublishedMay 27, 2026
First seenMay 27, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
MB connect line mbNET/mbNET.rokeyv ≤ 8.4.4, 8.4.4—
MB connect line mbNET.miniv ≤ 3.0.2, 3.0.2—
Helmholz REX200/250v ≤ 8.4.4, 8.4.4—
Helmholz REX100v ≤ 3.0.2, 3.0.2—

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