The Auto-Maskin DCU 210E, RP-210E, and Marine Pro Observer Android App use an embedded webserver that uses unencrypted plaintext for the transmission of the administrator PIN

published 2018-10-08 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-17172

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 use an embedded webserver that uses unencrypted plaintext for the transmission of the administrator PIN Impact: An attacker once authenticated can change configurations, upload new configuration files, and upload executable code via file upload for firmware updates. Requires access to the network. Affected releases are Auto-Maskin DCU-210E, RP-210E, and the 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

0.88% 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	8.8	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

Auto-Maskin DCU-210E
Auto-Maskin RP-210E

Classification

Weakness

CWE-319 Cleartext Transmission of Sensitive Information
CWE-310 Cryptographic Issues

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-2018-5402
NVD CVE-2018-5402

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