CVE-2026-67860
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductOpen62541
PublishedAug 4, 2026
First seenAug 4, 2026
Weakness typeCWE-122CWE-122
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| open62541 | 1.5.5 | — |
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