SYT-2023-3: Uncaught exception vulnerability in OPC UA C++ SDK, Secure Integration Server and OPC Suite

Publisher: Softing Industrial Automation GmbH Document category: csaf_security_advisory
Initial release date: 2023-11-07T11:00:00.000Z Engine: Secvisogram .2.2.15
Current release date: 2023-11-07T11:00:00.000Z Build Date: 2023-11-22T07:46:18.833Z
Current version: 1.0.0 Status: final
CVSSv3.1 Base Score: 7.5 Severity: high
Original language: en-US Language:
Also referred to:



When the Server want to send an error packet, while socket is blocked on writing, the server may crash unexpectedly and must be restarted This issue only occurs on Windows operating system.

CWE: CWE-248:Uncaught Exception
Discovery date: 2023-08-22T00:00:00.000Z

Product status

Known affected
Product CVSS-Vector CVSS Base Score
Softing OPC UA C++ SDK <= 6.20.1 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 OPC Suite <= V5.30 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 7.5

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 2023-11-07T11:00:00.000Z Initial version


The information provided in this disclosure is provided "as is" without warranty of any kind. Softing disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Softing or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Softing or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.