{"id":"CVE-2026-18784","state":"PUBLISHED","title":"o6 open62541 ua_client_highlevel.c UA_Client_readNodeClassAttribute heap-based overflow","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. 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