Remote Denial of Service Vulnerability in open62541 by open62541 Community
CVE-2026-67861

7.5HIGH

Key Information:

Vendor: open62541 Community
Status: open62541
Vendor: CVE Published:; 4 August 2026

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What is CVE-2026-67861?

A vulnerability in open62541 versions 1.5.5 and earlier allows remote attackers to exploit the UA_Client_getRemoteDataTypes component, potentially leading to a denial of service. This issue can disrupt normal operations by causing the affected system to become unresponsive or crash, highlighting the importance of users promptly updating to secure their applications from such remote attacks.

References

https://github.com/open62541/open62541/issues/8140

https://raw.githubusercontent.com/open62541/open62541/v1....

CVSS V3.1

Score:

7.5

Severity:

HIGH

Confidentiality:

None

Integrity:

None

Availability:

None

Attack Vector:

Network

Attack Complexity:

Low

Privileges Required:

None

User Interaction:

None

Scope:

Unchanged

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Aug 4, 2026
Vulnerability Reserved
Jul 30, 2026

CVE-2026-67861 Data

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