TI-2023-15474 Aliases CVE-2023-32171 GHSA-97p9-ff9m-h6m4

NULL pointer dereference in Unified Automation UaGateway

LOW 32CWE-476Published 2024-05-03 · Updated 2024-08-02

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-476.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01356 71st percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unified Automation	UaGateway	1.5.12.482	—	No fix listed	CNA

UaGateway VendorUnified Automation Affected 1.5.12.482 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:unified-automation:uagateway::::::::	before 1.5.13.487	Vulnerable	Unified Automation

cpe:2.3:a:unified-automation:uagateway:*:*:*:*:*:*:*:* Versions before 1.5.13.487 Vulnerable ·Unified Automation

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2024-05-03
Unified Automation UaGateway — vendor-provided URL
5 records Highest priority Priority MEDIUM 2 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2023-15473 Improper input validation in Unified Automation UaGatewayPriority MEDIUM 62
- TI-2023-15477 Use after free in Unified Automation UaGatewayPriority MEDIUM 45
- TI-2023-15475 Use after free in Unified Automation UaGatewayPriority LOW 32
Show all 5 records → Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2023-32171
2026-10-03 Alias added: GHSA-97p9-ff9m-h6m4

References

Advisory 2

TI-2023-15473 Improper input validation in Unified Automation UaGateway CVSS 3.0MEDIUM 6.5
TI-2023-15477 Use after free in Unified Automation UaGateway CVSS 3.0CRITICAL 9.1
TI-2023-21794 Integer overflow in Unified Automation UaGateway CVSS 3.1HIGH 7.5
TI-2023-15475 Use after free in Unified Automation UaGateway CVSS 3.0MEDIUM 6.5
TI-2023-15476 XML injection in Unified Automation UaGateway CVSS 3.0MEDIUM 5.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences