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CVE-2025-40771

Quick assessment

Affected
Siemens SIMATIC CP 1542SP-1
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Siemens SIMATIC CP Series是德国西门子（Siemens）公司的一系列通信处理器。 Siemens SIMATIC CP Series存在访问控制错误漏洞，该漏洞源于未正确验证配置连接，可能导致未经身份验证的远程攻击者访问配置数据。

CVSS 9.8 · Critical EPSS 0.50% · P41

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-40771

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 CP 1542SP-1 (6GK7542-6UX00-0XE0) (All versions < V2.4.24), SIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0) (All versions < V2.4.24), SIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0) (All versions < V2.4.24), SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (6AG2542-6VX00-4XE0) (All versions < V2.4.24), SIPLUS ET 200SP CP 1543SP-1 ISEC (6AG1543-6WX00-7XE0) (All versions < V2.4.24), SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (6AG2543-6WX00-4XE0) (All versions < V2.4.24). Affected devices do not properly authenticate configuration connections. This could allow an unauthenticated remote attacker to access the configuration data.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Siemens SIMATIC CP Series 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SIMATIC CP Series是德国西门子（Siemens）公司的一系列通信处理器。 Siemens SIMATIC CP Series存在访问控制错误漏洞，该漏洞源于未正确验证配置连接，可能导致未经身份验证的远程攻击者访问配置数据。
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)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Siemens SIMATIC CP 1542SP-1 0 ~ V2.4.24 -
Siemens SIMATIC CP 1542SP-1 IRC 0 ~ V2.4.24 -
Siemens SIMATIC CP 1543SP-1 0 ~ V2.4.24 -
Siemens SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL 0 ~ V2.4.24 -
Siemens SIPLUS ET 200SP CP 1543SP-1 ISEC 0 ~ V2.4.24 -
Siemens SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL 0 ~ V2.4.24 -

II. Public POCs for CVE-2025-40771

# POC Description Source Link Shenlong Link
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default-local-qwen3.6 · 11465 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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Trigger conditions & impact
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POC zip download
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III. Intelligence Information for CVE-2025-40771

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Same Patch Batch · Siemens · 2025-10-14 · 12 CVEs total

CVE-2025-40765 9.8 CRITICAL Siemens TeleControl Server Basic 访问控制错误漏洞
CVE-2025-40755 8.8 HIGH Siemens SINEC NMS SQL注入漏洞
CVE-2025-40809 7.8 HIGH Siemens Solid Edge SE2025和Siemens Solid Edge SE2024 缓冲区错误漏洞
CVE-2025-40810 7.8 HIGH Siemens Solid Edge SE2025和Siemens Solid Edge SE2024 缓冲区错误漏洞
CVE-2025-40811 7.8 HIGH Siemens Solid Edge SE2025和Siemens Solid Edge SE2024 缓冲区错误漏洞
CVE-2025-40812 7.8 HIGH Siemens Solid Edge SE2025和Siemens Solid Edge SE2024 缓冲区错误漏洞
CVE-2011-20001 7.5 HIGH Siemens SIMATIC S7-1200 CPU V1 family和Siemens SIMATIC S7-1200 CPU V2 family 输入验证错误漏洞
CVE-2011-20002 7.4 HIGH Siemens SIMATIC S7-1200 CPU V1 family和Siemens SIMATIC S7-1200 CPU V2 family 安全漏洞
CVE-2025-40772 7.4 HIGH Siemens SiPass integrated 跨站脚本漏洞
CVE-2025-40774 4.4 MEDIUM Siemens SiPass Integrated 安全漏洞
CVE-2025-40773 3.5 LOW Siemens SiPass integrated 安全漏洞

IV. Related Vulnerabilities

Same product: SIMATIC CP 1542SP-1
Same vendor: Siemens
Same weakness: CWE-306

V. Comments for CVE-2025-40771

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