What is CVE-2021-40873?

CVE-2021-40873 is a high-severity vulnerability in Softing Datafeed_opc_suite, classified under Double Free. CVSS score: 7.5/10. Published 2021-11-10.

How severe is CVE-2021-40873?

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

Double Free in Softing Datafeed_opc_suite

CVE-2021-40873

An issue was discovered in Softing Industrial Automation OPC UA C++ SDK before 5.66, and uaToolkit Embedded before 1.40. Remote attackers to cause a denial of service (DoS) by sending crafted messages to a client or server. The server proc…

Vulnerability class: Double Free

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

Softing Datafeed_opc_suite
Softing Edgeconnector
Softing Opc
Softing Secure_integration_server
Softing Th_scope
Softing Uagates
Softing Uatoolkit_embedded
N/a — versions n/a

Weakness classification (CWE)

CWE-415 — Double Free

References

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

Frequently asked questions

What is CVE-2021-40873?: CVE-2021-40873 is a high-severity vulnerability in Softing Datafeed_opc_suite, classified under Double Free. CVSS score: 7.5/10. Published 2021-11-10.
How severe is CVE-2021-40873?: High severity. CVSS v3 base score is 7.5 out of 10.