CVE-2023-32171

Unified Automation UaGateway OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability

MEDIUM
6.5
CVSS Score
Published: May 3, 2024 at 01:56 AM UTC
Updated: June 17, 2026 at 05:58 AM UTC
1 product affected across 1 vendorUaGateway

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Severity
MEDIUM6.5
Exploit prediction
EPSS 1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.5.13.4871.5.12.482
Affected range stops below 1.5.13.487, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMzdi
Vector?

Quick Info

StatusANALYZED
CWE
CWE-476

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