CVE-2023-32171 json
Unified Automation UaGateway OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability
published 2024-05-03 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-36439
- 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 71%
- public exploits
- 0
- none known
Summary
Unified Automation UaGateway OPC UA Server Null Pointer Dereference 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 ImportCsv method. A crafted XML payload can cause a null pointer dereference. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20495.
Patch / fix
- unified-automation uagateway 1.5.13.487
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
1.36% chance of exploitation in the next 30 days, higher than 71% 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
- unified-automation uagateway
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
References
-
documentation.unified-automation.com
/uagateway/1.5.14/CHANGELOG.txt
vendor-advisory, release-notes
-
zerodayinitiative.com
/advisories/ZDI-23-776/
third-party-advisory
Sources
- CVE List CVE-2023-32171
- NVD CVE-2023-32171
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