CVE-2026-116014 - open62541 1.5.0 before 1.5.7 Integer Overflow Heap Buffer Overflow via Custom DataType

CVE-2026-116014 - open62541 1.5.0 before 1.5.7 Integer Overflow Heap Buffer Overflow via Custom DataType

https://cvefeed.io/rssfeed/latest.atom / Sat, 10/24/2026 - 17:11
CVE ID :CVE-2026-116014
Published : Oct. 24, 2026, 12:16 p.m. | 2 hours, 5 minutes ago
Description :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.
Severity: 9.2 | CRITICAL
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