CVE-2026-116014
High · 8.1CVSS
8.1
EPSS
0.4%
Published
Oct 24, 2026
CISA due date
—
The record
open62541 1.5.0 before 1.5.7 contains an integer overflow in UA_DataType_fromStructureDescription() that wraps the 16-bit memSize field for large custom structure definitions. A malicious OPC UA server can supply DataType definitions via UA_Client_getRemoteDataTypes(), causing decodeBinaryStructure() to overflow the heap, crashing clients or enabling code execution.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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