Is CVE-2023-32170 actively exploited?

No active exploitation of CVE-2023-32170 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-32170 be exploited remotely?

Yes. CVE-2023-32170 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-32170?

CVE-2023-32170 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2023-32170

CWE-20Published: May 3, 2024· Updated: Jun 17, 2026

6.5

CVSS v3.1

Official Description

Unified Automation UaGateway OPC UA Server Improper Input Validation Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation UaGateway. User interaction is required to exploit this vulnerability in that the target must choose to accept a client certificate.

The specific flaw exists within the processing of client certificates. The issue results from the lack of proper validation of certificate data. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20494.

NVD Source

Technical Analysis

CVE-2023-32170 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.