CVE-2026-67856

Published: Aug 4, 2026Modified: Aug 31, 2026Deferred

7.5

Vector

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

Exploitability: 3.9 / Impact: 3.6

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via crafted CreateSubscription, CreateMonitoredItems(Sampling), Publish, TransferSubscriptions, and DeleteSubscriptions requests

Related CWEs

CWE-400

Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

References (6)

https://github.com/open62541/open62541/blob/master/examples/access_control/server_access_control.c

Source: cve@mitre.org

https://github.com/open62541/open62541/blob/master/src/server/ua_services_subscription.c

Source: cve@mitre.org

https://github.com/open62541/open62541/blob/master/src/server/ua_subscription.c

Source: cve@mitre.org

https://github.com/open62541/open62541/blob/master/src/server/ua_subscription.h

Source: cve@mitre.org

https://github.com/open62541/open62541/issues/8092

Source: cve@mitre.org

https://github.com/open62541/open62541/issues/8092

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.