What’s Vulnerable › Vulnerabilities

CVE-2023-32173: Unified Automation UaGateway AddServer XML Injection Denial-of-Service Vulnerability

• Severity: medium (CVSS 5.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-03 · updated 2026-06-17
• Weakness: CWE-91

Description

Unified Automation UaGateway AddServer XML Injection 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 when the product is in its default configuration. The specific flaw exists within the implementation of the AddServer method. By specifying crafted arguments, an attacker can cause invalid characters to be inserted into an XML configuration file. An attacker can leverage this vulnerability to create a persistent denial-of-service condition on the system. . Was ZDI-CAN-20576.

Affected products

• Unified Automation UaGateway: before 1.5.14.495 — fixed in 1.5.14.495

How to fix

Upgrade to a fixed version: Unified Automation UaGateway 1.5.14.495. Check the vendor advisory for mitigations.

References

• https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt
• https://www.zerodayinitiative.com/advisories/ZDI-23-779/
• https://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt
• https://www.zerodayinitiative.com/advisories/ZDI-23-779/

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