CVE Intelligence

O6 vulnerabilities

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Published CVEs affecting O6 products: 1 record(s), with severity, exploitation and fixes.

Exploited only (KEV) →

CVE-2026-18784 Medium · 5.3 CWE-119 Aug 4, 2026
o6 open62541 ua_client_highlevel.c UA_Client_readNodeClassAttribute heap-based overflow
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.