CVE-2026-67856

EUVD-2026-52968
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
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
References
https://github.com/open62541/open62541/blob/master/examples/access_control/server_access_control.c
https://github.com/open62541/open62541/blob/master/src/server/ua_services_subscription.c
https://github.com/open62541/open62541/blob/master/src/server/ua_subscription.c
https://github.com/open62541/open62541/blob/master/src/server/ua_subscription.h
https://github.com/open62541/open62541/issues/8092