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Vulnerability record · CVE-2021-42262 · published 11 March 2022

CVE-2021-42262: Softing datafeed opc suite memory buffer overflow vulnerability

Softing · Datafeed Opc Suite

An issue was discovered in Softing OPC UA C++ SDK before 5.70. An invalid XML element in the type dictionary makes the OPC/UA client crash due to an out-of-memory condition.

6.5 CVSS 3.1 Medium EPSS 0.83% · top 43.9% CWE-119 · Memory buffer overflow
6.5CVSS 3.1 base score, v2 4.0
0.83%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

An issue was discovered in Softing OPC UA C++ SDK before 5.70. An invalid XML element in the type dictionary makes the OPC/UA client crash due to an out-of-memory condition.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://industrial.softing.com/fileadmin/sof-files/pdf/ia/support/Security_Bulletin_CVE-2021-42262.pdf Vendor Advisory
https://industrial.softing.com/us/solutions/opc-and-opc-ua.html Vendor Advisory
https://industrial.softing.com/fileadmin/sof-files/pdf/ia/support/Security_Bulletin_CVE-2021-42262.pdf Vendor Advisory
https://industrial.softing.com/us/solutions/opc-and-opc-ua.html Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2021-42262), CISA KEV, FIRST EPSS (scores of 2026-10-03). This page is refreshed as NVD updates the record.