What’s Vulnerable › Vulnerabilities
CVE-2025-40593
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-07-08 · updated 2026-06-17
- Weakness: CWE-20
Description
A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0). The affected application allows to control the device by storing arbitrary files in the SFTP folder of the device. This could allow an attacker to cause a denial of service condition.
Affected products
- Siemens SIMATIC CN 4100: before 4.0 — fixed in 4.0
How to fix
Upgrade to a fixed version: Siemens SIMATIC CN 4100 4.0. Check the vendor advisory for mitigations.
References
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