CVE-2023-4149: Wago 0852-0602 Firmware

Critical severity, CVSS 9.8. EPSS: 1.1% chance of exploitation in the next 30 days.

A vulnerability in the web-based management allows an unauthenticated remote attacker to inject arbitrary system commands and gain full system control. Those commands are executed with root privileges. The vulnerability is located in the user request handling of the web-based management.

Affected products

• Wago 0852-0602 Firmware: before 1.0.6.s0 (fixed in 1.0.6.s0)
• Wago 0852-0603 Firmware: before 1.0.6.s0 (fixed in 1.0.6.s0)
• Wago 0852-1605 Firmware: before 1.2.5.s0 (fixed in 1.2.5.s0)

Published 2023-11-21. Last modified 2026-06-17.