CVE-2026-18784

MediumCVSS 5.3/10Last modified Oct 24, 2026

Description

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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Weakness enumeration

CWE-119 CWE-122

Affected software

No affected versions have been published.

Timeline

Published: Aug 4, 2026
Last modified: Oct 24, 2026
NVD status: Deferred

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