The Auto-Maskin DCU 210E, RP-210E, and Marine Pro Observer Android App transmit sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors

published 2018-10-08 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-17171

cvss: 9.1; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits: 0; none known

The Auto-Maskin DCU 210E, RP-210E, and Marine Pro Observer Android App transmit sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. The devices transmit process control information via unencrypted Modbus communications. Impact: An attacker can exploit this vulnerability to observe information about configurations, settings, what sensors are present and in use, and other information to aid in crafting spoofed messages. Requires access to the network. Affected releases are Auto-Maskin DCU-210E, RP-210E, and Marine Pro Observer Android App. Versions prior to 3.7 on ARMv7.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-20-051-04 updated 2020-02-20 cvss 7.5

Auto-Maskin RP210E, DCU210E, and Marine Observer Pro (Android App)

Auto-Maskin DCU210E <= 3.7 Auto-Maskin RP210E <= 3.7
affected: mitigation “Auto-Maskin reports new firmware is available to download from its website that mitigates the reported vulnerabilities.” auto-maskin.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

0.87% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	9.1	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD	3.0	5.9	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

Auto-Maskin DCU-210E
Auto-Maskin RP-210E
Auto-Maskin Marine Pro Observer Android App

Classification

Weakness

CWE-319 Cleartext Transmission of Sensitive Information

References

kb.cert.org /vuls/id/176301
third-party-advisory, us-government-resource
us-cert.gov /ics/advisories/icsa-20-051-04

Sources

CVE List CVE-2018-5401
NVD CVE-2018-5401

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary