CVE-2021-45117

Public Exploit

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.22%
Vendor Advisory opcfoundation.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.youtube.com/watch?v=qv-RBdCaV4k third party advisory exploit
https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-45117.pdf patch vendor advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-285795.pdf third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-45117?
CVE-2021-45117 has been scored as a medium severity vulnerability.
How to fix CVE-2021-45117?
To fix CVE-2021-45117, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-45117 being actively exploited in the wild?
It is possible that CVE-2021-45117 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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