CVE-2023-32172

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.

• CWE-416

• https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txtRelease Notes
• https://www.zerodayinitiative.com/advisories/ZDI-23-777/Third Party Advisory
• https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txtRelease Notes
• https://www.zerodayinitiative.com/advisories/ZDI-23-777/Third Party Advisory

Published

May 3, 2024

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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