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
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2026-67860?
CVE-2026-67860 has a risk score of 55, indicating a moderate severity level.
2
What type of vulnerability is CVE-2026-67860?
CVE-2026-67860 is classified as a heap-based buffer overflow vulnerability.
3
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.
4
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.
5
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.