Vulnerability Description
Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Service_Call validates input arguments against runtime-resolved InputArguments metadata
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Related Weaknesses (CWE)
References
- https://github.com/open62541/open62541/blob/v1.5.5/examples/tutorial_server_alar
- https://github.com/open62541/open62541/blob/v1.5.5/src/server/ua_services_method
- https://github.com/open62541/open62541/blob/v1.5.5/src/server/ua_subscription_al
- https://github.com/open62541/open62541/issues/8171
- https://github.com/open62541/open62541/issues/8171
FAQ
What is CVE-2026-67869?
CVE-2026-67869 is a vulnerability with a CVSS score of 7.5 (HIGH). Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Service_Call validates input arguments against runtime-resolved InputArguments metadata
How severe is CVE-2026-67869?
CVE-2026-67869 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-67869?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.