How severe is CVE-2023-32170?

CVE-2023-32170 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-32170 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-32170?

CVE-2023-32170 affects Unified-automation Uagateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-32170?

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

Does CVE-2023-32170 have an EU (EUVD) identifier?

Yes. CVE-2023-32170 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-36438.

When was CVE-2023-32170 published?

CVE-2023-32170 was published on 2024-05-03 and last updated on 2026-06-17.

CVE-2023-32170

CVE-2023-32170 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-36438
Weakness: CWE-20
Affected product: Unified-automation Uagateway
Published: 2024-05-03
Last modified: 2026-06-17

Description

Unified Automation UaGateway OPC UA Server Improper Input Validation Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation UaGateway. User interaction is required to exploit this vulnerability in that the target must choose to accept a client certificate. The specific flaw exists within the processing of client certificates. The issue results from the lack of proper validation of certificate data. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20494.

Frequently asked questions

What is CVE-2023-32170?: Unified Automation UaGateway OPC UA Server Improper Input Validation Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation UaGateway. User interaction is required to exploit this vulnerability in that the target must choose to accept a client certificate. The specific flaw exists within the processing of client certificates. The issue results from the lack of proper validation of certificate data. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20494.
How severe is CVE-2023-32170?: CVE-2023-32170 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-32170 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-32170?: CVE-2023-32170 affects Unified-automation Uagateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-32170?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-32170 have an EU (EUVD) identifier?: Yes. CVE-2023-32170 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-36438.
When was CVE-2023-32170 published?: CVE-2023-32170 was published on 2024-05-03 and last updated on 2026-06-17.

References

Affected products (1)

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

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