CVE-2024-32740: Siemens SIMATIC Cn 4100 Firmware

Critical severity, CVSS 9.8. EPSS: 0.7% chance of exploitation in the next 30 days.

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V3.0). The affected device contains undocumented users and credentials. An attacker could misuse the credentials to compromise the device locally or over the network.

Affected products

• Siemens SIMATIC Cn 4100 Firmware: before 3.0 (fixed in 3.0)

Published 2024-05-14. Last modified 2026-06-17.