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I. Basic Information for CVE-2021-27434
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Products with Unified Automation .NET based OPC UA Client/Server SDK Bundle: Versions V3.0.7 and prior (.NET 4.5, 4.0, and 3.5 Framework versions only) are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Siemens SIMATIC OPC UA 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens SIMATIC CP443-1 OPC UA9是德国西门子（Siemens）公司的一款通信处理器。 OPC UA 存在信息泄露漏洞。该漏洞源于程序向未经授权访问的角色公开敏感信息。以下产品及版本受到影响：Unified Automation .NET based OPC UA Client/Server SDK Bundle: Versions V3.0.7 and prior (.NET 4.5, 4.0, and 3.5 Framework versions only)。
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
VendorProductAffected VersionsCPESubscribe
-OPC UA Products Built with the .NET Framework 4.5, 4.0, and 3.5 Unified Automation .NET based OPC UA Client/Server SDK Bundle: Versions V3.0.7 and prior (.NET 4.5, 4.0, and 3.5 Framework versions only) -
II. Public POCs for CVE-2021-27434
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III. Intelligence Information for CVE-2021-27434
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IV. Related Vulnerabilities
Same vendor: n/a
Same weakness: CWE-200
V. Comments for CVE-2021-27434

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