ZDI-CAN-20505: ZDI-23-548: (Pwn2Own) OPC Foundation UA .NET Standard ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability
First published: Thu May 04 2023(Updated: )
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.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OPC Foundation Unified Architecture .NET Standard |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-CAN-20505?
ZDI-CAN-20505 has been categorized with a high severity rating due to its potential to cause a denial-of-service condition.
How do I fix ZDI-CAN-20505?
To remediate ZDI-CAN-20505, it is recommended to update to the latest version of OPC Foundation UA .NET Standard that addresses this vulnerability.
Is authentication required to exploit ZDI-CAN-20505?
No, authentication is not required to exploit ZDI-CAN-20505, making it more critical for affected installations.
What systems are affected by ZDI-CAN-20505?
ZDI-CAN-20505 affects installations of OPC Foundation UA .NET Standard.
What type of attack does ZDI-CAN-20505 facilitate?
ZDI-CAN-20505 enables remote attackers to create a denial-of-service condition on the affected systems.
- collector/zdi-published
- alias/ZDI-CAN-20505
- agent/first-publish-date
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- collector/zdi-advisory
- source/ZDI
- alias/ZDI-23-548
- alias/CVE-2023-27321
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- vendor/opc foundation
- canonical/opc foundation unified architecture .net standard