CVE-2023-32172 json
Unified Automation UaGateway OPC UA Server Use-After-Free Denial-of-Service Vulnerability
published 2024-05-03 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-36440
- cvss
- 6.5
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 72%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- unified-automation uagateway 1.5.13.487
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
1.37% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Unified Automation UaGateway
Classification
- Weakness
-
- CWE-416 Use After Free
References
-
documentation.unified-automation.com
/uagateway/1.5.14/CHANGELOG.txt
vendor-advisory, release-notes
-
zerodayinitiative.com
/advisories/ZDI-23-777/
third-party-advisory
Sources
- CVE List CVE-2023-32172
- NVD CVE-2023-32172
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