CVE-2025-27394: Siemens Scalance LPE9403 Firmware

High severity, CVSS 7.2. EPSS: 0.7% chance of exploitation in the next 30 days.

A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0). Affected devices do not properly sanitize user input when creating new SNMP users. This could allow an authenticated highly-privileged remote attacker to execute arbitrary code on the device.

Affected products

• Siemens Scalance LPE9403 Firmware: before 4.0 (fixed in 4.0)

Published 2025-03-11. Last modified 2026-06-17.