CVE-2023-27321 OPC Foundation UA .NET Standard ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability

OPC Foundation UA .NET Standard ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of OPC Foundation UA .NET Standard. Authentication is not required to exploit this...

CVE-2023-27321: Uncontrolled Resource Consumption

OPC Foundation UA .NET Standard ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of OPC Foundation UA .NET Standard. Authentication is not required to exploit this...

(Pwn2Own) OPC Foundation UA .NET Standard Improper Input Validation Authentication Bypass Vulnerability

This vulnerability allows remote attackers to bypass authentication on affected installations of OPC Foundation UA .NET Standard. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of certificates. The issue results from the lack of proper...

(Pwn2Own) OPC Foundation UA .NET Standard Resource Exhaustion Denial-of-Service Vulnerability

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of OPC Foundation UA .NET Standard. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of message chunks. By sending a large number ...

Insufficient Session Expiration and TOCTOU Race Condition in OPC FOundation UA .Net Standard

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of OPC Foundation UA .NET Standard 1.04.358.30. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of sessions. The issue results fr...

CVE-2021-27432: Uncontrolled Recursion

OPC Foundation UA .NET Standard versions prior to 1.4.365.48 and OPC UA .NET Legacy are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow...

CVE-2020-8867: Time-of-check Time-of-use (TOCTOU) Race Condition

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of OPC Foundation UA .NET Standard 1.04.358.30. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of sessions. The issue results fr...

(Pwn2Own) OPC Foundation UA .NET Standard CreateSessionRequest Race Condition Denial-of-Service Vulnerability

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of OPC Foundation UA .NET Standard. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of sessions. The issue results from the lack ...

GHSA-8336-MXP6-V5H9 Moderate severity vulnerability that affects OPCFoundation.NetStandard.Opc.Ua

Failure to validate certificates in OPC Foundation UA Client Applications communicating without security allows attackers with control over a piece of network infrastructure to decrypt passwords...

CVE-2018-12087: Improper Certificate Validation

Failure to validate certificates in OPC Foundation UA Client Applications communicating without security allows attackers with control over a piece of network infrastructure to decrypt passwords...

CVE-2017-12069: Improper Restriction of XML External Entity Reference

An XXE vulnerability has been identified in OPC Foundation UA .NET Sample Code before 2017-03-21 and Local Discovery Server LDS before 1.03.367. Among the affected products are Siemens SIMATIC PCS7 All versions V8.1 and earlier, SIMATIC WinCC All versions V7.4 SP1, SIMATIC WinCC Runtime...