CVE-2026-65423: o6 Automation open62541 Integer Overflow or Wraparound
Published Jul 30, 2026
·Updated
An integer overflow in the UAVariant arrayDimensions product computation in open62541 may allow a remote attacker to trigger an out-of-bounds write.
Affected Software
1 affected component
open62541 UA_Variant arrayDimensions
Event History
Jul 30, 2026
CVE Published
via MITRE·09:59 PM
Data Sourced
via MITRE·09:59 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·11:16 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2026-65423?
CVE-2026-65423 has a high severity score of 8.8.
2
How do I fix CVE-2026-65423?
To mitigate CVE-2026-65423, update to the latest patched version of open62541.
3
What are the potential impacts of CVE-2026-65423?
CVE-2026-65423 could allow a remote attacker to execute an out-of-bounds write, potentially compromising system stability or security.
4
Which software is affected by CVE-2026-65423?
CVE-2026-65423 affects the open62541 library, specifically the UA_Variant arrayDimensions feature.
5
Is CVE-2026-65423 related to integer overflow?
Yes, CVE-2026-65423 is classified as an integer overflow vulnerability.