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CVE-2025-27127

Quick assessment

Affected
Siemens TIA Project-Server
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 TIA Project-Server等都是德国西门子（Siemens）公司的产品。Siemens TIA Project-Server是一款多人协作工具。Siemens TIA Project-Server V17是一款多人协作工具。Siemens Totally Integrated Automation Portal是一款工程组态平台。 Siemens多款产品存在代码问题漏洞，该漏洞源于应用程序不当处理文档根目录中上传的项目，可能导致具有贡献者权限的攻击者上传恶意项目导致拒绝服务。以下

CVSS 4.3 · Medium EPSS 0.30% · P21

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-27127

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been identified in TIA Project-Server (All versions < V2.1.1), TIA Project-Server V17 (All versions), Totally Integrated Automation Portal (TIA Portal) V17 (All versions), Totally Integrated Automation Portal (TIA Portal) V18 (All versions), Totally Integrated Automation Portal (TIA Portal) V19 (All versions < V19 Update 4), Totally Integrated Automation Portal (TIA Portal) V20 (All versions < V20 Update 3). The affected application improperly handles uploaded projects in the document root. This could allow an attacker with contributor privileges to cause denial of service by uploading a malicious project.
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:L
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
Siemens多款产品 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens TIA Project-Server等都是德国西门子（Siemens）公司的产品。Siemens TIA Project-Server是一款多人协作工具。Siemens TIA Project-Server V17是一款多人协作工具。Siemens Totally Integrated Automation Portal是一款工程组态平台。 Siemens多款产品存在代码问题漏洞，该漏洞源于应用程序不当处理文档根目录中上传的项目，可能导致具有贡献者权限的攻击者上传恶意项目导致拒绝服务。以下
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 TIA Project-Server 0 ~ V2.1.1 -
Siemens TIA Project-Server V17 0 ~ * -
Siemens Totally Integrated Automation Portal (TIA Portal) V17 0 ~ * -
Siemens Totally Integrated Automation Portal (TIA Portal) V18 0 ~ * -
Siemens Totally Integrated Automation Portal (TIA Portal) V19 0 ~ V19 Update 4 -
Siemens Totally Integrated Automation Portal (TIA Portal) V20 0 ~ V20 Update 3 -

II. Public POCs for CVE-2025-27127

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III. Intelligence Information for CVE-2025-27127

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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-2025-40593 6.5 MEDIUM Siemens SIMATIC CN 4100 输入验证错误漏洞
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

IV. Related Vulnerabilities

Same vendor: Siemens
Same weakness: CWE-434

V. Comments for CVE-2025-27127

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