Security Advisory

CVE-2026-67863

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-08-05 00:00:00

Last updated 2026-08-06 12:45:48

Assigner mitre

CVSS score not scored

State PUBLISHED

Description

In open62541 1.5.5, a server-side use-after-free exists in the local MonitoredItem callback path. The issue occurs when UA_Subscription_localPublish continues to use the current UA_Notification after a callback invokes UA_Server_deleteMonitoredItem for the current local MonitoredItem. This allows a remote attacker to cause a denial of service.

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