Bug 2560284 (CVE-2026-116014) - CVE-2026-116014 open62541: open62541 1.5.0 before 1.5.7 Integer Overflow Heap Buffer Overflow via Custom DataType
Summary: CVE-2026-116014 open62541: open62541 1.5.0 before 1.5.7 Integer Overflow Heap...
Keywords:
Status: NEW
Alias: CVE-2026-116014
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
urgent
urgent
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-24 11:51 UTC by OSIDB Bzimport
Modified: 2026-11-02 21:59 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-10-24 11:51:44 UTC 
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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