Executive Summary

Name CVE-2021-40873 First vendor Publication 2021-11-10
Vendor Cve Last vendor Modification 2021-11-16

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


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 process may crash unexpectedly because of a double free, and must be restarted.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40873

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-415 Double Free

CPE : Common Platform Enumeration

Application 1
Application 2
Application 1
Application 1
Application 1
Application 1

Sources (Detail)

Source Url
MISC https://industrial.softing.com/

Alert History

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Date Informations
2022-08-20 02:06:18
  • Multiple Updates
2021-11-17 17:22:58
  • Multiple Updates
2021-11-11 09:22:56
  • Multiple Updates
2021-11-11 05:22:49
  • First insertion