CVE-2026-18784
MEDIUM
NVD
CVSS Score
5.3
Severity
MEDIUM
Published
Aug 04, 2026
Vendor
unknown
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.