Vulnerabilities > CVE-2021-40871 - Type Confusion vulnerability in Softing products

CVSS 7.5 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

HIGH

network

low complexity

softing

CWE-843

NVD

Published: 2021-11-10

Updated: 2024-11-21

Summary

An issue was discovered in Softing Industrial Automation OPC UA C++ SDK before 5.66. Remote attackers to cause a denial of service (DoS) by sending crafted messages to a OPC/UA client. The client process may crash unexpectedly because of a wrong type cast, and must be restarted.

Vulnerable Configurations

Part	Description	Count
Application	Softing Softing Secure Integration Server - Softing Secure Integration Server 1.22 Softing Datafeed OPC Suite - Softing Datafeed OPC Suite 5.17 Softing TH Scope 3.5 Softing OPC - Softing OPC 4.20.00 Softing OPC 4.20.01 Softing OPC 4.20.02 Softing OPC 4.20.03 Softing OPC 4.20.04 Softing OPC 4.22.00 Softing OPC 4.22.01 Softing OPC 4.22.03 Softing OPC 4.22.05 Softing OPC 4.30.0 Softing OPC 4.30.1 Softing OPC 4.31.0 Softing OPC 4.31.1 Softing OPC 4.40.0 Softing OPC 4.40.1 Softing OPC 4.40.2 Softing OPC 4.40.3 Softing OPC 4.41.0 Softing OPC 4.41.1 Softing OPC 4.41.2 Softing OPC 4.45.0 Softing OPC 4.46.0 Softing OPC 4.47.0 Softing OPC 4.47.1 Softing OPC 5.2 Softing OPC 5.30 Softing OPC 5.65	33

Common Weakness Enumeration (CWE)

CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

References