What is CVE-2021-40871?

CVE-2021-40871 is a high-severity vulnerability in Softing Datafeed_opc_suite, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 7.5/10. Published 2021-11-10.

How severe is CVE-2021-40871?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Softing Datafeed_opc_suite

CVE-2021-40871

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…

EPSS: 0.013 (66.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

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

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-40871?: CVE-2021-40871 is a high-severity vulnerability in Softing Datafeed_opc_suite, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 7.5/10. Published 2021-11-10.
How severe is CVE-2021-40871?: High severity. CVSS v3 base score is 7.5 out of 10.