CVE-2026-40852: high-severity vulnerability in Helmholz REX100
Command injection via malicious configuration
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.2epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
Helmholz · REX100Helmholz · REX200/250MB connect line · mbNET/mbNET.rokeyMB connect line · mbNET.miniRelated CVEs — Helmholz REX100
In the same product, most dangerous first.
CVE-2024-45274CRITICALMB connect line/Helmholz: Remote code execution via confnet serviceEPSS 1.5%CVE-2024-45275CRITICALMB connect line/Helmholz: Hardcoded user accounts with hard-coded passwordsEPSS 0.8%CVE-2025-41688HIGHHigh Privilege RCE via LUA Sandbox EscapeEPSS 0.8%CVE-2024-45276HIGHMB connect line/Helmholz: tmp directory exposed via webserviceEPSS 0.6%CVE-2024-45271HIGHMB connect line/Helmholz: Remote code execution due to improper input validationEPSS 0.3%CVE-2026-40851HIGHCommand injection via USBEPSS 0.1%