CVE-2021-42577

HIGH

Softing OPC UA C++ SDK < 5.70.0 - Denial of Service via Malformed OPC/UA Abort Packet

Title source: llm
STIX 2.1

Description

An issue was discovered in Softing OPC UA C++ SDK before 5.70. A malformed OPC/UA message abort packet makes the client crash with a NULL pointer dereference.

References (2)

Core 2
Core References
Vendor Advisory x_refsource_misc
https://softing.com

Scores

CVSS v3 7.5
EPSS 0.0092
EPSS Percentile 55.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (3)
softing/datafeed_opc_suite < 5.19
softing/opc_ua_c\+\+_software_development_kit < 5.70.0
softing/secure_integration_server < 1.22
Published Mar 11, 2022
Tracked Since Feb 18, 2026