CVE-2020-25230: Siemens Logo! 8 Bm Firmware

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). Due to the usage of an outdated cipher mode on port 10005/tcp, an attacker could extract the encryption key from a captured communication with the device.

Affected products

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

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