CVE-2023-27465

Severity: medium (CVSS 4.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-06-13 · updated 2026-10-24
Weakness: CWE-213

Description

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; 5.5 — fixed in 5.5
Siemens Simotion C240 Pn Firmware: from 5.4 before 5.5; 5.5 — fixed in 5.5
Siemens Simotion D410-2 Dp/Pn Firmware: from 5.4 before 5.5; 5.5 — fixed in 5.5
Siemens Simotion D410-2 Dp Firmware: from 5.4 before 5.5; 5.5 — fixed in 5.5
Siemens Simotion D425-2 Dp/Pn Firmware: from 5.4 before 5.5; 5.5 — fixed in 5.5
Siemens Simotion D425-2 Dp Firmware: from 5.4 before 5.5; 5.5 — fixed in 5.5
Siemens Simotion D435-2 Dp/Pn Firmware: from 5.4 before 5.5; 5.5 — fixed in 5.5
Siemens Simotion D435-2 Dp Firmware: from 5.4 before 5.5; 5.5 — fixed in 5.5
Siemens Simotion D445-2 Dp/Pn (0Aa0) Firmware: 5.4
Siemens Simotion D445-2 Dp/Pn (0Aa1) Firmware: from 5.4 before 5.5; 5.5 — fixed in 5.5
Siemens Simotion D455-2 Dp/Pn Firmware: from 5.4 before 5.5; 5.5 — fixed in 5.5
Siemens Simotion P320-4 E Firmware: 5.4
Siemens Simotion P320-4 S Firmware: 5.4

How to fix

Upgrade to a fixed version: Siemens Simotion C240 Firmware 5.5; Siemens Simotion C240 Pn Firmware 5.5; Siemens Simotion D410-2 Dp/Pn Firmware 5.5; Siemens Simotion D410-2 Dp Firmware 5.5; Siemens Simotion D425-2 Dp/Pn Firmware 5.5; Siemens Simotion D425-2 Dp Firmware 5.5; Siemens Simotion D435-2 Dp/Pn Firmware 5.5; Siemens Simotion D435-2 Dp Firmware 5.5; Siemens Simotion D445-2 Dp/Pn (0Aa1) Firmware 5.5; Siemens Simotion D455-2 Dp/Pn Firmware 5.5. Check the vendor advisory for mitigations.

References

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