CVE-2018-5400
The Auto-Maskin DCU 210E, RP-210E, and Marine Pro Observer Android App utilize an undocumented custom protocol to set up Modbus communications with other devices without validating those devices, resulting in an origin validation error
02 Description
The Auto-Maskin DCU 210E, RP-210E, and Marine Pro Observer Android App utilize an undocumented custom protocol to set up Modbus communications with other devices without validating those devices, resulting in an origin validation error
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.74% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 54.2% of scored records. A rank, not a probability.
- NVD base score
- 9.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- NVD analysis status
- Modified. 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
- 2018-10-08 15:00Z8 YR AGO
- Last updated
- 2024-09-16 18:08Z2 YR AGO
- Reserved
- 2018-01-12
- Assigning CNA
- certcc
- Record state
- PUBLISHED
- Severity
- Critical (CVSS 9.1)
- CNA CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-346Origin Validation ErrorClass
- Data version
- 5.1
- Document digest
- 0697b58c0f370ba01d8af54d4d189f9d29dd584fe2eab4f83dc64f331564efbd
05 Affected products
06 References
- www.kb.cert.orgVU#176301https://www.kb.cert.org/vuls/id/176301
- www.us-cert.govhttps://www.us-cert.gov/ics/advisories/icsa-20-051-04
07 Remediation
The devices should implement Modbus TCP Security Protocol (v21, 2018) per Modbus specifications over port 802 TCP, for Modbus TCP with encryption and authentication.