CVE-2025-40937
High
Description
A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected application do not properly validate input parameters in its REST API, resulting in improper handling of unexpected arguments. This could allow an authenticated attacker to execute arbitrary code with limited privileges.
SeverityHigh
CVSS8.3
Exploit probability—
ProductSiemens Simatic Cn 4100 Firmware
PublishedDec 9, 2025
First seenDec 9, 2025
Weakness typeCWE-77Command injection
How to fix
Update
- siemens simatic_cn_4100_firmware4.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| siemens simatic_cn_4100_firmware | v < 4.0.1 | 4.0.1 |
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