What’s Vulnerable › Vulnerabilities
CVE-2025-40937
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-12-09 · updated 2026-10-23
- Weakness: CWE-77
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.
Affected products
- Siemens SIMATIC CN 4100: before 4.0.1 — fixed in 4.0.1
How to fix
Upgrade to a fixed version: Siemens SIMATIC CN 4100 4.0.1. Check the vendor advisory for mitigations.
References
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