CVE-2026-67857

Name of the Vulnerable Software and Affected Versions open62541 version 1.5.5

Description An out-of-bounds read exists in the client-side function responseReadNamespacesArray() located in src/client/ua client connect.c. An out-of-bounds read occurs when a program reads data past the end of the intended buffer, which can lead to information disclosure or system instability.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.