CVE-2023-49252: Siemens SIMATIC Cn 4100 Firmware

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V2.7). The affected application allows IP configuration change without authentication to the device. This could allow an attacker to cause denial of service condition.

Affected products

• Siemens SIMATIC Cn 4100 Firmware: before 2.7 (fixed in 2.7)

Published 2024-01-09. Last modified 2026-06-17.