Vulnerability Details : 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 wrong type cast, and must be restarted.
Vulnerability category: Denial of service
Products affected by CVE-2021-40871
- cpe:2.3:a:softing:opc:*:*:*:*:*:*:*:*
- cpe:2.3:a:softing:datafeed_opc_suite:*:*:*:*:*:*:*:*
- cpe:2.3:a:softing:secure_integration_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:softing:th_scope:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-40871
0.20%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 58 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-40871
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-40871
-
The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-40871
-
https://industrial.softing.com/fileadmin/sof-files/pdf/ia/support/Security_Bulletin-CVE-2021-40871.pdf
Vendor Advisory
-
https://industrial.softing.com/
Softing Industrial | Data Networks & Data Intelligence SolutionsVendor Advisory
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