RCE in Helmholz Rex100
CVE-2026-40852
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 exe…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.001 (26.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Helmholz Rex100 — versions 0.0.0, 3.0.2
- Helmholz Rex200/250 — versions 0.0.0, 8.4.4
- Mb Connect Line Mbnet/mbnet.rokey — versions 0.0.0, 8.4.4
- Mb Connect Line Mbnet.mini — versions 0.0.0, 3.0.2
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-40852?
- CVE-2026-40852 is a high-severity vulnerability in Helmholz Rex100, classified under OS Command Injection. CVSS score: 7.2/10. Published 2026-05-27.
- How severe is CVE-2026-40852?
- High severity. CVSS v3 base score is 7.2 out of 10.