CVE-2023-34412: Helmholz Rex 200 Firmware

Medium severity, CVSS 4.8. EPSS: 0.4% chance of exploitation in the next 30 days.

A vulnerability in Red Lion Europe mbNET/mbNET.rokey and Helmholz REX 200 and REX 250 devices with firmware lower 7.3.2 allows an authenticated remote attacker with high privileges to inject malicious HTML or JavaScript code (XSS).

Affected products

• Helmholz Rex 200 Firmware: before 7.3.2 (fixed in 7.3.2)
• Helmholz Rex 250 Firmware: before 7.3.2 (fixed in 7.3.2)
• Redlion Mbnet.rokey Rkh 210 Firmware: before 7.3.2 (fixed in 7.3.2)
• Redlion Mbnet.rokey Rkh 216 Firmware: before 7.3.2 (fixed in 7.3.2)
• Redlion Mbnet.rokey Rkh 235 Firmware: before 7.3.2 (fixed in 7.3.2)
• Redlion Mbnet.rokey Rkh 259 Firmware: before 7.3.2 (fixed in 7.3.2)
• Redlion Mbnet Mdh 811 Firmware: before 7.3.2 (fixed in 7.3.2)
• Redlion Mbnet Mdh 816 Firmware: before 7.3.2 (fixed in 7.3.2)
• Redlion Mbnet Mdh 831 Firmware: before 7.3.2 (fixed in 7.3.2)
• Redlion Mbnet Mdh 835 Firmware: before 7.3.2 (fixed in 7.3.2)
• Redlion Mbnet Mdh 841 Firmware: before 7.3.2 (fixed in 7.3.2)
• Redlion Mbnet Mdh 850 Firmware: before 7.3.2 (fixed in 7.3.2)
• Redlion Mbnet Mdh 855 Firmware: before 7.3.2 (fixed in 7.3.2)
• Redlion Mbnet Mdh 858 Firmware: before 7.3.2 (fixed in 7.3.2)
• Redlion Mbnet Mdh 859 Firmware: before 7.3.2 (fixed in 7.3.2)
• Redlion Mbnet Mdh 871 Firmware: before 7.3.2 (fixed in 7.3.2)
• Redlion Mbnet Mdh 876 Firmware: before 7.3.2 (fixed in 7.3.2)

Published 2023-08-17. Last modified 2026-06-17.