CVEvulnerability
CVE-2026-67863
7.5 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-08-05
- Last modified
- 2026-08-31
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-416
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.
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://github.com/open62541/open62541/blob/v1.5.5/include/open62541/server.h github.com
- https://github.com/open62541/open62541/blob/v1.5.5/src/server/ua_services_monitoreditem.c github.com
- https://github.com/open62541/open62541/blob/v1.5.5/src/server/ua_subscription.c github.com
- https://github.com/open62541/open62541/issues/8131 github.com
- https://github.com/open62541/open62541/issues/8131 github.com