CVE-2026-67860: Buffer Overflow

Published Aug 4, 2026

Updated

open62541 1.5.5 contains a heap-based buffer overflow in the default HistoryRead path when the default history database is used with the memory backend.

Affected Software

1 affected component

open62541 open62541=1.5.5

Event History

Aug 4, 2026

CVE Published

via MITRE·12:00 AM

Data Sourced

via MITRE·12:00 AM

Description

Data Sourced

via NVD·10:17 PM

Description

Frequently Asked Questions

What is the severity of CVE-2026-67860?

CVE-2026-67860 has a risk score of 55, indicating a moderate severity level.

What type of vulnerability is CVE-2026-67860?

CVE-2026-67860 is classified as a heap-based buffer overflow vulnerability.

How do I fix CVE-2026-67860?

To fix CVE-2026-67860, upgrade to the released patch or newer version of open62541 that addresses this vulnerability.

Which versions are affected by CVE-2026-67860?

CVE-2026-67860 affects open62541 version 1.5.5 when using the default history database with the memory backend.

What are the potential impacts of CVE-2026-67860?

CVE-2026-67860 can lead to application crashes or arbitrary code execution due to the buffer overflow.

CVE-2026-67860: Buffer Overflow

Affected Software

Event History

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Frequently Asked Questions

What is the severity of CVE-2026-67860?

What type of vulnerability is CVE-2026-67860?

How do I fix CVE-2026-67860?

Which versions are affected by CVE-2026-67860?

What are the potential impacts of CVE-2026-67860?

Company

Resources

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Frequently Asked Questions

What is the severity of CVE-2026-67860?

What type of vulnerability is CVE-2026-67860?

How do I fix CVE-2026-67860?

Which versions are affected by CVE-2026-67860?

What are the potential impacts of CVE-2026-67860?