GHSA-78c3-xxg6-2pf3CriticalCVSS 8.1
open62541 1.5.0 before 1.5.7 contains an integer overflow in UA_DataType_fromStructureDescription...
🔗 CVE IDs covered (1)
📋 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.
🔗 References (8)
- https://nvd.nist.gov/vuln/detail/CVE-2026-116014
- https://github.com/open62541/open62541/pull/8298
- https://github.com/open62541/open62541/pull/8302
- https://github.com/open62541/open62541/commit/0cf4806768c493bc6ccffcd4419da24153b970ec
- https://github.com/open62541/open62541/blob/v1.5.6/src/ua_types_definition.c#L274
- https://github.com/open62541/open62541/releases/tag/v1.5.7
- https://www.vulncheck.com/advisories/open62541-1.5.0-before-1.5.7-integer-overflow-heap-buffer-overflow-via-custom-datatype
- https://github.com/advisories/GHSA-78c3-xxg6-2pf3