CVE-2026-82623 open62541 History Backend ua_history_data_backend_memory.c UA_DataValue_backend_copyRange use after free

A vulnerability was detected in open62541 up to 1.5.5. Affected by this vulnerability is the function UADataValuebackendcopyRange of the file plugins/historydata/uahistorydatabackendmemory.c of the component History Backend. The manipulation results in use after free. The attack can be launched...

CVE-2026-82623

CVE-2026-82623 affects open62541 versions up to 1.5.5 , specifically the function UA_DataValue_backend_copyRange in the file plugins/historydata/ua_history_data_backend_memory.c of the History Backend component. The root cause is a use-after-free that can be triggered remotely without privileges ...