CVE-2023-32172: Unified Automation UaGateway OPC UA Server Use-After-Free Denial-of-Service Vulnerability

Q: How do I fix CVE-2023-32172?

uagateway: upgrade to 1.5.13.487. Exact commands for each OS are on this page.

Q: Is CVE-2023-32172 being exploited?

CVE-2023-32172 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-2023-32172 affect?

CVE-2023-32172 affects uagateway. Severity is medium (CVSS 6.5). Unified Automation UaGateway OPC UA Server Use-After-Free Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation UaGateway. Authent

Q: How urgent is CVE-2023-32172?

Priority 41/100. No elevated risk signals yet.

This month

MEDIUM 6.5UPGRADE

CVE-2023-32172 is a medium-severity flaw (CVSS 6.5) affecting uagateway. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unified Automation UaGateway OPC UA Server Use-After-Free 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 implementation of the ImportXML function. The issue results from the lack of validating the existence of an object prior t

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.4% (top 28%)
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: < 1.5.13.487

Fixed in: 1.5.13.487

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.5.13.487 (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-2023-32172?

uagateway: upgrade to 1.5.13.487. Exact commands for each OS are on this page.

Is CVE-2023-32172 being exploited?

CVE-2023-32172 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-2023-32172 affect?

CVE-2023-32172 affects uagateway. Severity is medium (CVSS 6.5). Unified Automation UaGateway OPC UA Server Use-After-Free Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation UaGateway. Authent

How urgent is CVE-2023-32172?

Priority 41/100. No elevated risk signals yet.

Related CVEs

CVE-2023-41185 HIGH 7.5 UPGRADE Unified Automation UaGateway Certificate Parsing Integer Overflow Denial-of-Service Vulnerability
CVE-2023-32174 CRITICAL 9.1 UPGRADE Unified Automation UaGateway NodeManagerOpcUa Use-After-Free Remote Code Execution Vulnerability
CVE-2023-32173 MEDIUM 5.8 UPGRADE Unified Automation UaGateway AddServer XML Injection 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

← Back to latest CVEs