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
References6
- github.com/open62541/open62541/blob/master/examples/access_cont…
- github.com/open62541/open62541/blob/master/src/server/ua_servic…
- github.com/open62541/open62541/blob/master/src/server/ua_subscr…
- github.com/open62541/open62541/blob/master/src/server/ua_subscr…
- github.com/open62541/open62541/issues/8092
- github.com/open62541/open62541/issues/8092
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 1% percentile: 56 · as of 13 November 2026
- CWE
- CWE-400
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.