CVE-2025-40593 — MEDIUM (6.5)

Q: How severe is CVE-2025-40593?

CVE-2025-40593 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2025-40593?

Check the references section above for vendor advisories and patch information. Affected products include: Siemens Simatic Cn 4100 Firmware, Siemens Simatic Cn 4100.

Vulnerability 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.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Siemens	Simatic Cn 4100 Firmware	< 4.0
Siemens	Simatic Cn 4100	-

Related Weaknesses (CWE)

CWE-20

References

https://cert-portal.siemens.com/productcert/html/ssa-626991.htmlVendor Advisory

FAQ

What is CVE-2025-40593?

CVE-2025-40593 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 co...

How severe is CVE-2025-40593?

CVE-2025-40593 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-40593?

Check the references section above for vendor advisories and patch information. Affected products include: Siemens Simatic Cn 4100 Firmware, Siemens Simatic Cn 4100.