CVE-2025-40593
published 2025-07-08CVE-2025-40593: 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…
PriorityP334medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
0.32%
24.4th percentile
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
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| siemens | simatic_cn_4100 | < V4.0 | V4.0 |
| siemens | simatic_cn_4100_firmware | < 4.0 | 4.0 |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv4.07.1HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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GHSA
GHSA-vm7p-h5v8-4m2j: A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4
ghsa_unreviewed·2025-07-08
CVE-2025-40593 [HIGH] CWE-20 GHSA-vm7p-h5v8-4m2j: A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4
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.
CISA ICS
Siemens SIMATIC CN 4100
cisa_ics·2025-07-10·CVSS 6.5
[MEDIUM] Siemens SIMATIC CN 4100
ICS Advisory
##
Siemens SIMATIC CN 4100
Release DateJuly 10, 2025
Alert CodeICSA-25-191-04
Related topics:
Industrial Control System Vulnerabilities, Industrial Control Systems
As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global).
View CSAF
## 1. EXECUTIVE SUMMARY
- CVSS v4 7.1
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Siemens
- Equipment: SIMATIC CN 4100
- Vulnerability: Improper Input Validation
## 2. RISK EVALUATION
Successful exploitation of this vulnerability could al
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-07-08
Published