CVE-2023-32174Network attack vector

Authenticated SYSTEM code execution via configuration race

Published May 3, 2024 · Updated Sep 18, 2024

Use-after-free in NodeManagerOpcUa in Unified Automation UaGateway before 1.5.14.495 allows remote authenticated users to execute code. Parallel AddServer and RemoveServer calls through the configuration interface can free an object while NodeManagerOpcUa continues operating on it without checking that it still exists. Administrative configuration access is required by default, and successful exploitation runs code as SYSTEM.

CVSS severity9.1
Critical
EPSS probability1.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in NodeManagerOpcUa in Unified Automation UaGateway before 1.5.14.495 allows remote authenticated users to execute code. Parallel AddServer and RemoveServer calls through the configuration interface can free an object while NodeManagerOpcUa continues operating on it without checking that it still exists. Administrative configuration access is required by default, and successful exploitation runs code as SYSTEM.

The record

CVE
CVE-2023-32174
Published
May 3, 2024
Updated
Sep 18, 2024
Vendor
Unified Automation
Product
UaGateway
Classifications
CWE-416, T1210
Attack vector
network
Privileges
admin

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=0 <1.5.14.495
  2. Affected versionversion=UaGateway 1.5.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Unified Automation · UaGatewayversion=0 <1.5.14.495; version=UaGateway 1.5.13

Published CVSS scores

9.1Zero Day InitiativeCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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