SYT-2022-9: Improper input validation vulnerability in OPC UA C++ SDK, Secure Integration Server, edgeConnector, edgeAggregator, uaGate and OPC Suite

Publisher: Softing Industrial Automation GmbH Document category: csaf_security_advisory
Initial release date: 2022-10-14T16:00:00.000Z Engine: Secvisogram 2.5.0
Current release date: 2024-03-09T11:37:34.064Z Build Date: 2024-03-09T11:37:34.064Z
Current version: 3.0.0 Status: final
CVSSv3.1 Base Score: 7.5 Severity: high
Original language: en-US Language:
Also referred to:



A malformed write request may cause an excess memory allocation or an out-of-bounds memory access. The server or client process may crash unexpectedly and must be restarted

CWE: CWE-20:Improper Input Validation
Discovery date: 2022-10-14T10:00:00.000Z

Product status

Known affected
Product CVSS-Vector CVSS Base Score
Softing OPC UA C++ SDK <= 6.00 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 7.5
Softing OPC Suite <= V5.22 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 7.5
Softing Secure Integration Server <= V1.22 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 7.5
Softing edgeConnector < V3.50 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 7.5
Softing edgeAggregator < V3.50 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 7.5
Softing uaGates <= V1.74 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 7.5



Disable the posibility to establish unauthenticated sessions to the OPC UA server, because the atttack works on an established OPC UA session.

For products:

Softing Industrial Automation GmbH


Softing PSIRT - contact us at [email protected]

Revision history

Version Date of the revision Summary of the revision
1.0.0 2022-10-14T16:00:00.000Z Initial version
2.0.0 2023-11-28T13:09:45.909Z Fixes for OPC Suite, Secure Integration Server, edgeConnector and edgeAggregator
3.0.0 2024-03-09T11:37:34.064Z Fixes for uaGate


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