CVE-2026-116014

Açıklama (NVD)

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.

Yayın: 24.10.2026 · Son değişiklik: 24.10.2026 · Zayıflık: CWE-190

CVSS

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Referanslar

• https://github.com/open62541/open62541/blob/v1.5.6/src/ua_types_definition.c#L274
• https://github.com/open62541/open62541/commit/0cf4806768c493bc6ccffcd4419da24153b970ec
• https://github.com/open62541/open62541/pull/8298
• https://github.com/open62541/open62541/pull/8302
• 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-c…