SYT-2024-2: Missing release of memory vulnerability in uaToolkit Embedded and smartLink

Publisher: Softing Industrial Automation GmbH Document category: csaf_security_advisory
Initial release date: 2024-03-09T11:19:59.780Z Engine: Secvisogram 2.5.0
Current release date: 2024-03-09T11:19:59.780Z Build Date: 2024-03-09T11:24:10.037Z
Current version: 1.0.0 Status: final
CVSSv3.1 Base Score: 6.5 Severity: high
Original language: en-US Language:
Also referred to:



When an OPC UA subscription with a very low MaxNotificationPerPublish parameter is created, a publish response is mishandled, leading to memory consumption. When that happens often enough, the device will be out of memory, i.e., a denial of service.

CWE: CWE-401:Missing Release of Memory after Effective Lifetime
Discovery date: 2024-03-09T11:19:59.780Z

Product status

Known affected
Product CVSS-Vector CVSS Base Score
Softing uaToolkit Embedded >= V1.30 and <= V1.41 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H 6.5
Softing smartLink HW-DP <= V1.30 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H 6.5
Softing smartLink HW-PN V1.02 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H 6.5
Softing smartLink SW-PN V1.02 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H 6.5




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 2024-03-09T11:19:59.780Z Initial version


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