medium5.3
CVE-2026-18784
A vulnerability was found in o6 open62541 up to 1.5.5.
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| O6 Open62541 | before 1.5.5. |
Versions were read from the advisory text. No structured product data has been published for this record yet.