PT-2026-67870 · Open62541 · Open62541

CVE-2026-67857

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Published

2026-08-04

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Updated

2026-08-05

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.

Exploit

Out of bounds Read

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Weakness Enumeration

Related Identifiers

CVE-2026-67857

Affected Products

Open62541