Denial of Service in open62541 Affecting Multiple Versions
CVE-2026-67864

7.5HIGH

Key Information:

Vendor

open62541

Status
open62541
Vendor
CVE Published:
5 August 2026

What is CVE-2026-67864?

An issue exists in open62541 versions prior to 1.5.5 that can be exploited by remote attackers. The vulnerability relates to the NodeManagement type-instantiation logic, which can lead to a disruption of service. By targeting this component, an attacker may cause the application to become unresponsive, preventing legitimate users from accessing the service.

References

https://github.com/open62541/open62541/issues/8133
https://github.com/open62541/open62541/blob/v1.5.5/src/se...
https://github.com/open62541/open62541/blob/v1.5.5/exampl...

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.