CVE-2023-27465: Siemens Simotion c240 Firmware

Medium severity, CVSS 4.6. EPSS: 0.3% chance of exploitation in the next 30 days.

A vulnerability has been identified in SIMOTION C240 (All versions >= V5.4 < V5.5 SP1), SIMOTION C240 PN (All versions >= V5.4 < V5.5 SP1), SIMOTION D410-2 DP (All versions >= V5.4 < V5.5 SP1), SIMOTION D410-2 DP/PN (All versions >= V5.4 < V5.5 SP1), SIMOTION D425-2 DP (All versions >= V5.4 < V5.5 SP1), SIMOTION D425-2 DP/PN (All versions >= V5.4 < V5.5 SP1), SIMOTION D435-2 DP (All versions >= V5.4 < V5.5 SP1), SIMOTION D435-2 DP/PN (All versions >= V5.4 < V5.5 SP1), SIMOTION D445-2 DP/PN (All versions >= V5.4), SIMOTION D445-2 DP/PN (All versions >= V5.4 < V5.5 SP1), SIMOTION D455-2 DP/PN (All versions >= V5.4 < V5.5 SP1), SIMOTION P320-4 E (All versions >= V5.4), SIMOTION P320-4 S (All versions >= V5.4). When operated with Security Level Low the device does not protect access to certain services relevant for debugging. This could allow an unauthenticated attacker to extract confidential technology object (TO) configuration from the device.

Affected products

  • Siemens Simotion c240 Firmware: from 5.4, before 5.5 (fixed in 5.5); version 5.5 only
  • Siemens Simotion c240 Pn Firmware: from 5.4, before 5.5 (fixed in 5.5); version 5.5 only
  • Siemens Simotion d410-2 Dp/pn Firmware: from 5.4, before 5.5 (fixed in 5.5); version 5.5 only
  • Siemens Simotion d410-2 Dp Firmware: from 5.4, before 5.5 (fixed in 5.5); version 5.5 only
  • Siemens Simotion d425-2 Dp/pn Firmware: from 5.4, before 5.5 (fixed in 5.5); version 5.5 only
  • Siemens Simotion d425-2 Dp Firmware: from 5.4, before 5.5 (fixed in 5.5); version 5.5 only
  • Siemens Simotion d435-2 Dp/pn Firmware: from 5.4, before 5.5 (fixed in 5.5); version 5.5 only
  • Siemens Simotion d435-2 Dp Firmware: from 5.4, before 5.5 (fixed in 5.5); version 5.5 only
  • Siemens Simotion d445-2 Dp/pn (0aa0) Firmware: version 5.4 only
  • Siemens Simotion d445-2 Dp/pn (0aa1) Firmware: from 5.4, before 5.5 (fixed in 5.5); version 5.5 only
  • Siemens Simotion d455-2 Dp/pn Firmware: from 5.4, before 5.5 (fixed in 5.5); version 5.5 only
  • Siemens Simotion p320-4 E Firmware: version 5.4 only
  • Siemens Simotion p320-4 S Firmware: version 5.4 only

Published 2023-06-13. Last modified 2026-06-17.