CVE-2023-32174: Unified Automation UaGateway NodeManagerOpcUa Use-After-Free Remote Code Execution Vulnerability

Q: How do I fix CVE-2023-32174?

uagateway: upgrade to 1.5.14.495. Exact commands for each OS are on this page.

Q: Is CVE-2023-32174 being exploited?

CVE-2023-32174 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-32174 affect?

CVE-2023-32174 affects uagateway. Severity is critical (CVSS 9.1). Unified Automation UaGateway NodeManagerOpcUa Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Unified Automation UaGateway. Authentication

Q: How urgent is CVE-2023-32174?

Priority 52/100. Critical severity

This month

CRITICAL 9.1UPGRADE

CVE-2023-32174 is a critical-severity flaw (CVSS 9.1) affecting uagateway. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unified Automation UaGateway NodeManagerOpcUa Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code 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 handling of NodeManagerOpcUa objects. The issue results from the lack of validat

Why this priority

Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	1.9% (top 21%)
CISA exploited list	No
Weakness	CWE-416
Published	2024-05-03
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: unified-automation

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-05-03 02:15 UTCPublished CVE record published
2026-06-17 05:58 UTCUpdated Record last modified

unified-automation uagateway UPGRADE

Affected: < 1.5.14.495

Fixed in: 1.5.14.495

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy uagateway || rpm -q uagateway || uagateway --version

2. UPGRADE to 1.5.14.495 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade uagateway

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade uagateway

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-32174?

uagateway: upgrade to 1.5.14.495. Exact commands for each OS are on this page.

Is CVE-2023-32174 being exploited?

CVE-2023-32174 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-32174 affect?

CVE-2023-32174 affects uagateway. Severity is critical (CVSS 9.1). Unified Automation UaGateway NodeManagerOpcUa Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Unified Automation UaGateway. Authentication

How urgent is CVE-2023-32174?

Priority 52/100. Critical severity

Related CVEs

CVE-2023-41185 HIGH 7.5 UPGRADE Unified Automation UaGateway Certificate Parsing Integer Overflow Denial-of-Service Vulnerability
CVE-2023-32173 MEDIUM 5.8 UPGRADE Unified Automation UaGateway AddServer XML Injection Denial-of-Service Vulnerability
CVE-2023-32172 MEDIUM 6.5 UPGRADE Unified Automation UaGateway OPC UA Server Use-After-Free Denial-of-Service Vulnerability
CVE-2023-32171 MEDIUM 6.5 UPGRADE Unified Automation UaGateway OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability
CVE-2023-32170 MEDIUM 6.5 UPGRADE Unified Automation UaGateway OPC UA Server Improper Input Validation Denial-of-Service Vulnerability

References

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