CVE-2017-12735: Siemens Logo! 8 Bm Firmware

High severity, CVSS 7.4. EPSS: 1.1% chance of exploitation in the next 30 days.

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). An attacker who performs a Man-in-the-Middle attack between the LOGO! BM and other devices could potentially decrypt and modify network traffic.

Affected products

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

Published 2017-08-30. Last modified 2026-06-17.