CVE-2023-27407: Siemens Scalance LPE9403 Firmware

Critical severity, CVSS 9.9. EPSS: 1.3% chance of exploitation in the next 30 days.

A vulnerability has been identified in SCALANCE LPE9403 (All versions < V2.1). The web based management of affected device does not properly validate user input, making it susceptible to command injection. This could allow an authenticated remote attacker to access the underlying operating system as the root user.

Affected products

• Siemens Scalance LPE9403 Firmware: before 2.1 (fixed in 2.1)

Published 2023-05-09. Last modified 2026-06-17.