CVE-2023-29130: Siemens SIMATIC Cn 4100 Firmware

Critical severity, CVSS 10.0. EPSS: 0.6% chance of exploitation in the next 30 days.

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V2.5). Affected device consists of improper access controls in the configuration files that leads to privilege escalation. An attacker could gain admin access with this vulnerability leading to complete device control.

Affected products

• Siemens SIMATIC Cn 4100 Firmware: before 2.5 (fixed in 2.5)

Published 2023-07-11. Last modified 2026-06-17.