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Vulnerability record · CVE-2026-67864 · published 5 August 2026

CVE-2026-67864: Uncontrolled resource consumption vulnerability

An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the NodeManagement type-instantiation logic component

7.5 CVSS 3.1 High EPSS 0.76% · top 46.6% CWE-400 · Uncontrolled resource consumption Deferred
7.5CVSS 3.1 base score
0.76%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
31 Aug 2026Last modified by NVD

Description

An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the NodeManagement type-instantiation logic component

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

References

LinkTags
https://github.com/open62541/open62541/blob/v1.5.5/examples/ci_server.c
https://github.com/open62541/open62541/blob/v1.5.5/plugins/ua_accesscontrol_default.c
https://github.com/open62541/open62541/blob/v1.5.5/src/server/ua_services_nodemanagement.c
https://github.com/open62541/open62541/issues/8133
https://github.com/open62541/open62541/issues/8133

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Source: NIST National Vulnerability Database (record CVE-2026-67864), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.