CVE-2022-37012

Description

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation OPC UA C++ Demo Server 1.7.6-537. Authentication is not required to exploit this vulnerability. The specific flaw exists within the OpcUa_SecureListener_ProcessSessionCallRequest method. A crafted OPC UA message can force the server to incorrectly update a reference count. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-16927.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
EPSS 0.83% Top 30%
Third-Party Advisory zerodayinitiative.com
Affected: Unified Automation OPC UA C++ Demo Server
Published at:
Updated at:

References

Link Tags
https://www.zerodayinitiative.com/advisories/ZDI-22-1030/ third party advisory vdb entry
https://documentation.unified-automation.com/uasdkcpp/1.7.7/CHANGELOG.txt release notes

Frequently Asked Questions

What is the severity of CVE-2022-37012?
CVE-2022-37012 has been scored as a high severity vulnerability.
How to fix CVE-2022-37012?
To fix CVE-2022-37012, 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-2022-37012 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-37012 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-37012?
CVE-2022-37012 affects Unified Automation OPC UA C++ Demo Server.
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