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VULNERABILITIES

CVE-2026-116014 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/open62541/open62541/blob/v1.5.6/src/ua_types_definition.c#L274 [email protected]
https://github.com/open62541/open62541/commit/0cf4806768c493bc6ccffcd4419da24153b970ec [email protected]
https://github.com/open62541/open62541/pull/8298 [email protected]
https://github.com/open62541/open62541/pull/8302 [email protected]
https://github.com/open62541/open62541/releases/tag/v1.5.7 [email protected]

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-190Integer Overflow or Wraparound[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-116014
NVD Published Date:
Oct 24, 2026
NVD Last Modified:
Oct 29, 2026
Source:
[email protected]