CVE-2023-32173Network attack vector

Persistent denial of service via AddServer XML injection

Published May 3, 2024 · Updated Sep 18, 2024

XML injection in Unified Automation UaGateway 1.5.13 allows remote authenticated users to cause a persistent service interruption. The AddServer method accepts crafted arguments containing invalid control characters and persists them in the XML configuration file. Default installations require configuration privileges, and the malformed persisted configuration prevents normal service until the stored data is repaired.

CVSS severity5.8
Medium
EPSS probability1.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XML injection in Unified Automation UaGateway 1.5.13 allows remote authenticated users to cause a persistent service interruption. The AddServer method accepts crafted arguments containing invalid control characters and persists them in the XML configuration file. Default installations require configuration privileges, and the malformed persisted configuration prevents normal service until the stored data is repaired.

The record

CVE
CVE-2023-32173
Published
May 3, 2024
Updated
Sep 18, 2024
Vendor
Unified Automation
Product
UaGateway
Classifications
CWE-91, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=UaGateway 1.5.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Unified Automation · UaGatewayversion=UaGateway 1.5.13

Published CVSS scores

5.8Zero Day InitiativeCVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-91XML Injection (aka Blind XPath Injection)
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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