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CVE-2025-40566

Quick assessment

Affected
Siemens SIMATIC PCS neo V4.1
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 PCS neo是德国西门子（Siemens）公司的一个分布式控制系统。 Siemens SIMATIC PCS neo存在代码问题漏洞，该漏洞源于用户注销后未正确使会话失效，可能导致会话重用。

CVSS 8.8 · High EPSS 0.44% · P36

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2025-40566

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 PCS neo V4.1 (All versions < V4.1 Update 3), SIMATIC PCS neo V5.0 (All versions < V5.0 Update 1). Affected products do not correctly invalidate user sessions upon user logout. This could allow a remote unauthenticated attacker, who has obtained the session token by other means, to re-use a legitimate user's session even after logout.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的会话过期机制
Source: CVE Program / CVE List V5
Vulnerability Title
Siemens SIMATIC PCS neo 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SIMATIC PCS neo是德国西门子（Siemens）公司的一个分布式控制系统。 Siemens SIMATIC PCS neo存在代码问题漏洞，该漏洞源于用户注销后未正确使会话失效，可能导致会话重用。
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 PCS neo V4.1 0 ~ V4.1 Update 3 -
Siemens SIMATIC PCS neo V5.0 0 ~ V5.0 Update 1 -

II. Public POCs for CVE-2025-40566

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III. Intelligence Information for CVE-2025-40566

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Same Patch Batch · Siemens · 2025-05-13 · 36 CVEs total

CVE-2025-26389 10.0 CRITICAL Siemens OZW672 操作系统命令注入漏洞
CVE-2025-32469 9.9 CRITICAL siemens多款产品 安全漏洞
CVE-2025-33024 9.9 CRITICAL Siemens多款产品 安全漏洞
CVE-2025-33025 9.9 CRITICAL Siemens多款产品 安全漏洞
CVE-2025-26390 9.8 CRITICAL Siemens OZW672和Siemens OZW772 SQL注入漏洞
CVE-2025-31930 8.8 HIGH Siemens VersiCharge AC Series 安全漏洞
CVE-2025-40582 7.8 HIGH Siemens SCALANCE LPE9403 操作系统命令注入漏洞
CVE-2025-32454 7.8 HIGH Siemens Teamcenter Visualization 缓冲区错误漏洞
CVE-2025-40574 7.8 HIGH Siemens SCALANCE LPE9403 安全漏洞
CVE-2025-30175 7.5 HIGH Siemens多款产品 缓冲区错误漏洞
CVE-2024-23815 7.5 HIGH Siemens Desigo CC 访问控制错误漏洞
CVE-2025-24007 7.5 HIGH Siemens SIRIUS 3RK3 Modular Safety System和Siemens SIRIUS Safety Relays 3SK2 加密问题漏洞
CVE-2025-30174 7.5 HIGH Siemens多款产品 缓冲区错误漏洞
CVE-2025-30176 7.5 HIGH Siemens多款产品 缓冲区错误漏洞
CVE-2025-40581 7.1 HIGH Siemens SCALANCE LPE9403 安全漏洞
CVE-2025-40579 6.7 MEDIUM Siemens SCALANCE LPE9403 安全漏洞
CVE-2025-40580 6.7 MEDIUM Siemens SCALANCE LPE9403 安全漏洞
CVE-2024-51444 6.5 MEDIUM Siemens Polarion SQL注入漏洞
CVE-2024-51445 6.5 MEDIUM Siemens Polarion 代码问题漏洞
CVE-2024-51446 6.5 MEDIUM Siemens Polarion 跨站脚本漏洞

Showing top 20 of 36 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: SIMATIC PCS neo V4.1
Same vendor: Siemens
Same weakness: CWE-613

V. Comments for CVE-2025-40566

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