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CVE-2025-40593

Quick assessment

Affected
Siemens SIMATIC CN 4100
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Siemens SIMATIC CN 4100是德国西门子（Siemens）公司的一个通信节点。 Siemens SIMATIC CN 4100 V4.0之前版本存在输入验证错误漏洞，该漏洞源于允许通过SFTP文件夹存储任意文件，可能导致拒绝服务。

CVSS 6.5 · Medium EPSS 0.36% · P28
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I. Basic Information for CVE-2025-40593

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Siemens SIMATIC CN 4100 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SIMATIC CN 4100是德国西门子（Siemens）公司的一个通信节点。 Siemens SIMATIC CN 4100 V4.0之前版本存在输入验证错误漏洞，该漏洞源于允许通过SFTP文件夹存储任意文件，可能导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Siemens SIMATIC CN 4100 0 ~ V4.0 -

II. Public POCs for CVE-2025-40593

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III. Intelligence Information for CVE-2025-40593

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Same Patch Batch · Siemens · 2025-07-08 · 18 CVEs total

CVE-2025-40736 9.8 CRITICAL Siemens SINEC NMS 访问控制错误漏洞
CVE-2025-41224 8.8 HIGH Siemens多款产品 安全漏洞
CVE-2025-40738 8.8 HIGH Siemens SINEC NMS 路径遍历漏洞
CVE-2025-40737 8.8 HIGH Siemens SINEC NMS 路径遍历漏洞
CVE-2025-40735 8.8 HIGH Siemens SINEC NMS SQL注入漏洞
CVE-2024-31853 8.1 HIGH Siemens SICAM TOOLBOX II 信任管理问题漏洞
CVE-2024-31854 8.1 HIGH Siemens SICAM TOOLBOX II 信任管理问题漏洞
CVE-2025-40741 7.8 HIGH Siemens Solid Edge SE2025 安全漏洞
CVE-2025-40740 7.8 HIGH Siemens Solid Edge SE2025 缓冲区错误漏洞
CVE-2025-40739 7.8 HIGH Siemens Solid Edge SE2025 缓冲区错误漏洞
CVE-2025-23365 7.8 HIGH Siemens TIA Administrator 访问控制错误漏洞
CVE-2023-52236 7.0 HIGH Siemens多款产品 加密问题漏洞
CVE-2025-23364 6.2 MEDIUM Siemens TIA Administrator 数据伪造问题漏洞
CVE-2025-40742 5.3 MEDIUM Siemens多款产品 安全漏洞
CVE-2025-41222 5.3 MEDIUM Siemens多款产品 安全漏洞
CVE-2025-41223 4.8 MEDIUM Siemens多款产品 加密问题漏洞
CVE-2025-27127 4.3 MEDIUM Siemens多款产品 代码问题漏洞

IV. Related Vulnerabilities

Same product: SIMATIC CN 4100
Same vendor: Siemens
Same weakness: CWE-20

V. Comments for CVE-2025-40593

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