Is CVE-2023-32172 actively exploited?

No active exploitation of CVE-2023-32172 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-32172 be exploited remotely?

Yes. CVE-2023-32172 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-32172?

CVE-2023-32172 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2023-32172

CWE-416Published: May 3, 2024· Updated: Jun 17, 2026

6.5

CVSS v3.1

Official Description

Unified Automation UaGateway OPC UA Server Use-After-Free Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation UaGateway. Authentication is required to exploit this vulnerability.

The specific flaw exists within the implementation of the ImportXML function. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20497.

NVD Source

Technical Analysis

CVE-2023-32172 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

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

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.