CVE-2023-32170

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector : AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt	Release Notes
https://www.zerodayinitiative.com/advisories/ZDI-23-775/	Third Party Advisory
https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt	Release Notes
https://www.zerodayinitiative.com/advisories/ZDI-23-775/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:unified-automation:uagateway:*:*:*:*:*:*:*:*

History

08 Aug 2025, 14:10

Type	Values Removed	Values Added
References	~~() https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt -~~	() https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt - Release Notes
References	~~() https://www.zerodayinitiative.com/advisories/ZDI-23-775/ -~~	() https://www.zerodayinitiative.com/advisories/ZDI-23-775/ - Third Party Advisory
CPE		cpe:2.3:a:unified-automation:uagateway::::::::
First Time		Unified-automation Unified-automation uagateway

Information

Published : 2024-05-03 02:15

Updated : 2025-08-08 14:10

NVD link : CVE-2023-32170

Mitre link : CVE-2023-32170

CVE.ORG link : CVE-2023-32170

JSON object : View

Products Affected

unified-automation

uagateway

CWE

CWE-20

Improper Input Validation

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