CVE-2023-27336

published 2024-05-03

CVE-2023-27336: Softing edgeConnector Siemens OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a…

Priority P3 41 high 7.5 CVSS 3.0

AV N AC L PR N UI N S U C N I N A H

Softing edgeConnector Siemens OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Softing edgeConnector Siemens. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of OPC client certificates. The issue results from dereferencing a NULL pointer. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20508.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
softing	edgeaggregator	< 3.70	3.70
softing	edgeconnector	< 3.70	3.70
softing	edgeconnector_siemens	—	—
softing	secure_integration_server	< 1.30	1.30

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