Vulnerability CVE-2021-45117
Published: 2022-03-21

Description:
The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.

Type:

CWE-476

 (NULL Pointer Dereference)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Opcfoundation -> Ua-nodeset 

 References:
https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-45117.pdf
https://www.youtube.com/watch?v=qv-RBdCaV4k
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