01 Record
CVE-2023-32170
Unified Automation UaGateway OPC UA Server Improper Input Validation Denial-of-Service Vulnerability
MediumPUBLISHEDCNA: zdi
CNA base score6.5 CVSS v3.xCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
02 Description
Unified Automation UaGateway OPC UA Server Improper Input Validation Denial-of-Service Vulnerability
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.58% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 47.9% of scored records. A rank, not a probability.
- NVD base score
- 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2024-05-03 01:56Z2 YR AGO
- Last updated
- 2024-08-02 15:10Z2 YR AGO
- Reserved
- 2023-05-03
- Assigning CNA
- zdi
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.5)
- CNA CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.1
- Document digest
- 42dc85e4266c224ebb4dd7ce46fdc8c70186409a3d6d600f736ff227c59be3b2
05 Affected products
06 References
- www.zerodayinitiative.comZDI-23-775https://www.zerodayinitiative.com/advisories/ZDI-23-775/
- documentation.unified-automation.comvendor-provided URLhttps://documentation.unified-automation.com/uagateway/1.5.14/CHANGELOG.txt