CVE-2025-27397: Siemens Scalance LPE9403 Firmware

Low severity, CVSS 3.8. EPSS: 0.4% 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 limit user controlled paths to which logs are written and from where they are read. This could allow an authenticated highly-privileged remote attacker to read and write arbitrary files in the filesystem, if and only if the malicious path ends with 'log' .

Affected products

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

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