How severe is CVE-2023-32172?

CVE-2023-32172 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-32172 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-32172?

CVE-2023-32172 affects Unified-automation Uagateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-32172?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-32172 have an EU (EUVD) identifier?

Yes. CVE-2023-32172 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-36440.

When was CVE-2023-32172 published?

CVE-2023-32172 was published on 2024-05-03 and last updated on 2026-06-17.

CVE-2023-32172

CVE-2023-32172 is a medium-severity vulnerability in Unified-automation Uagateway with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-36440
Weakness: CWE-416
Affected product: Unified-automation Uagateway
Published: 2024-05-03
Last modified: 2026-06-17

Description

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 to performing operations on the object. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20497.

Frequently asked questions

What is CVE-2023-32172?: 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 to performing operations on the object. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20497.
How severe is CVE-2023-32172?: CVE-2023-32172 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-32172 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-32172?: CVE-2023-32172 affects Unified-automation Uagateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-32172?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-32172 have an EU (EUVD) identifier?: Yes. CVE-2023-32172 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-36440.
When was CVE-2023-32172 published?: CVE-2023-32172 was published on 2024-05-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:unified-automation:uagateway:*:*:*:*:*:*:*:*

More vulnerabilities in Unified-automation Uagateway

CVE-2023-32174 — Critical (CVSS 9.1): Unified Automation UaGateway NodeManagerOpcUa Use-After-Free Remote Code Execution Vulnerability. This vulnerability…
CVE-2023-41185 — High (CVSS 7.5): Unified Automation UaGateway Certificate Parsing Integer Overflow Denial-of-Service Vulnerability. This vulnerability…
CVE-2023-32171 — Medium (CVSS 6.5): Unified Automation UaGateway OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability. This vulnerability…
CVE-2023-32170 — Medium (CVSS 6.5): Unified Automation UaGateway OPC UA Server Improper Input Validation Denial-of-Service Vulnerability. This…
CVE-2023-32173 — Medium (CVSS 5.8): Unified Automation UaGateway AddServer XML Injection Denial-of-Service Vulnerability. This vulnerability allows remote…

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