Vulnerability Description
Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Discovery/LDS handling.
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/master/examples/discovery/server_lds
- https://github.com/open62541/open62541/blob/master/src/server/ua_discovery_mdns.
- https://github.com/open62541/open62541/blob/master/src/server/ua_services_discov
- https://github.com/open62541/open62541/blob/master/src/util/ua_util.c
- https://github.com/open62541/open62541/issues/8095
- https://github.com/open62541/open62541/issues/8095
FAQ
What is CVE-2026-67859?
CVE-2026-67859 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 Discovery/LDS handling.
How severe is CVE-2026-67859?
CVE-2026-67859 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-2026-67859?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.