CVE-2026-67856
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.4%
exploitation probability
0.4%top 65% of all CVEs
observed exploitation
nono source reports it
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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
n/a · n/aReferences
https://github.com/open62541/open62541/blob/master/examples/access_control/server_access_control.chttps://github.com/open62541/open62541/blob/master/src/server/ua_services_subscription.chttps://github.com/open62541/open62541/blob/master/src/server/ua_subscription.chttps://github.com/open62541/open62541/blob/master/src/server/ua_subscription.hhttps://github.com/open62541/open62541/issues/8092