CVE-2020-25235: Siemens Logo! 8 Bm Firmware

High severity, CVSS 7.5. EPSS: 1.4% chance of exploitation in the next 30 days.

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). The password used for authentication for the LOGO! Website and the LOGO! Access Tool is sent in a recoverable format. An attacker with access to the network traffic could derive valid logins.

Affected products

• Siemens Logo! 8 Bm Firmware: before 8.3 (fixed in 8.3)

Published 2020-12-14. Last modified 2026-06-17.