CVE-2020-8867

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

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 from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to create a denial-of-service condition against the application. Was ZDI-CAN-10295.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-367CWE-613

Affected software

VendorProductVersions
OPC FoundationUA .NET Standard1.04.358.30

References

Timeline

Published
Apr 22, 2020
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2020-8867: High severity, CVSS 7.5 | Vulnix