Out-of-Bounds Affecting open62541 package, versions *


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.12% (3rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ECHOLATEST-OPEN62541-18533233
  • published5 Aug 2026
  • disclosed4 Aug 2026

Introduced: 4 Aug 2026

NewCVE-2026-18784  (opens in a new tab)
CWE-119  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest open62541.

NVD Description

Note: Versions mentioned in the description apply only to the upstream open62541 package and not the open62541 package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1