CVE-2025-40593

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.

Category

7.1
CVSS
Severity: High
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.04%
Affected: Siemens SIMATIC CN 4100
Published at:
Updated at:

References

Link Tags
https://cert-portal.siemens.com/productcert/html/ssa-626991.html

Frequently Asked Questions

What is the severity of CVE-2025-40593?
CVE-2025-40593 has been scored as a high severity vulnerability.
How to fix CVE-2025-40593?
To fix CVE-2025-40593, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-40593 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-40593 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-40593?
CVE-2025-40593 affects Siemens SIMATIC CN 4100.
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