Vulnerability Description
A vulnerability was found in o6 open62541 up to 1.5.5. This issue affects the function UA_Client_readNodeClassAttribute of the file src/client/ua_client_highlevel.c. Performing a manipulation results in heap-based buffer overflow. Attacking locally is a requirement. The exploit has been made public and could be used. The project closed the issue report, stating that this is not the official way to report a security vulnerability.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/gff-cw/information/issues/11
- https://github.com/open62541/open62541/issues/8139
- https://vuldb.com/cve/CVE-2026-18784
- https://vuldb.com/submit/857012
- https://vuldb.com/vuln/385786
- https://vuldb.com/vuln/385786/cti
FAQ
What is CVE-2026-18784?
CVE-2026-18784 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A vulnerability was found in o6 open62541 up to 1.5.5. This issue affects the function UA_Client_readNodeClassAttribute of the file src/client/ua_client_highlevel.c. Performing a manipulation results ...
How severe is CVE-2026-18784?
CVE-2026-18784 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-18784?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.