CVE-2023-27336

Softing edgeConnector Siemens OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability

Description

Softing edgeConnector Siemens OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Softing edgeConnector Siemens. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of OPC client certificates. The issue results from dereferencing a NULL pointer. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20508.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
EPSS 0.29%
Third-Party Advisory zerodayinitiative.com
Affected: Softing edgeConnector Siemens
Published at:
Updated at:

References

Link Tags
https://www.zerodayinitiative.com/advisories/ZDI-23-1065/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2023-27336?
CVE-2023-27336 has been scored as a high severity vulnerability.
How to fix CVE-2023-27336?
To fix CVE-2023-27336, 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-2023-27336 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-27336 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-27336?
CVE-2023-27336 affects Softing edgeConnector Siemens.
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