CVE-2023-32171

Name: CVE-2023-32171
Creator: NVD / NIST
Published: 2024-05-03T02:15:22.593+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.36%

Last modified Jun 17, 2026

CVE-2023-32171 is a vulnerability of currently unknown severity. Unified Automation UaGateway 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 Unified Automation UaGateway. EPSS estimates a 1.36% chance of exploitation in the next 30 days.

Description

Unified Automation UaGateway 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 Unified Automation UaGateway. Authentication is required to exploit this vulnerability. The specific flaw exists within the ImportCsv method. A crafted XML payload can cause a null pointer dereference. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20495.

Metrics

EPSS Probability

1.36%

68.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Unified-Automation	Uagateway	< 1.5.13.487

References

https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txtRelease Notes
https://www.zerodayinitiative.com/advisories/ZDI-23-776/Third Party Advisory
https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txtRelease Notes
https://www.zerodayinitiative.com/advisories/ZDI-23-776/Third Party Advisory

Timeline

Published: May 3, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-32171?

How severe is CVE-2023-32171?

Severity scoring for CVE-2023-32171 is pending analysis. The EPSS model estimates a 1.36% probability of exploitation in the next 30 days.

How do I fix CVE-2023-32171?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-32171?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST