Vulnerability · Published Jul 8, 2025 · Assigned by siemens
CVE-2025-40593
Medium 6.5
In plain English
A medium-severity improper input validation in SIMATIC CN 4100 from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 66.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Siemens | SIMATIC CN 4100 | 0 – before V4.0 |
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H