CVE-2025-40593

MEDIUM

SIMATIC CN 4100 < 4.0 - Denial of Service via Arbitrary File Write in SFTP Folder

Title source: llm
STIX 2.1

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.

References (1)

Core 1

Scores

CVSS v3 6.5
EPSS 0.0031
EPSS Percentile 54.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-20
Status published
Products (1)
siemens/simatic_cn_4100_firmware < 4.0
Published Jul 08, 2025
Tracked Since Feb 18, 2026