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
History

Wed, 05 Aug 2026 21:15:00 +0000

Type Values Removed Values Added
Title Denial of Service via Crafted OPC UA Subscription Requests in open62541

Wed, 05 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 04 Aug 2026 23:45:00 +0000

Type Values Removed Values Added
First Time appeared Open62541
Open62541 open62541
Vendors & Products Open62541
Open62541 open62541

Tue, 04 Aug 2026 23:15:00 +0000

Type Values Removed Values Added
Title Denial of Service via Crafted OPC UA Subscription Requests in open62541
Weaknesses CWE-400

Tue, 04 Aug 2026 21:45:00 +0000

Type Values Removed Values Added
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
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-08-05T18:50:49.774Z

Reserved: 2026-07-30T00:00:00.000Z

Link: CVE-2026-67856

cve-icon Vulnrichment

Updated: 2026-08-05T18:50:32.216Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-05T21:00:05Z