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        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-10-24T11:23:55.329Z",
        "datePublished": "2026-10-24T11:40:32.200Z",
        "dateUpdated": "2026-10-24T11:40:32.200Z"
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                "dateUpdated": "2026-10-24T11:40:32.200Z"
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            "datePublic": "2026-08-14T21:34:28.000Z",
            "title": "open62541 1.5.0 before 1.5.7 Integer Overflow Heap Buffer Overflow via Custom DataType",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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."
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                    "descriptions": [
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                            "lang": "en",
                            "description": "Integer Overflow or Wraparound",
                            "cweId": "CWE-190",
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                    "vendor": "open62541",
                    "product": "open62541",
                    "packageURL": "pkg:github/open62541/open62541",
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                    "versions": [
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                            "versionType": "semver",
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                    "url": "https://github.com/open62541/open62541/commit/0cf4806768c493bc6ccffcd4419da24153b970ec",
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