How severe is CVE-2018-5402?

CVE-2018-5402 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2018-5402 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-5402?

CVE-2018-5402 primarily affects Auto-maskin Marine Pro Observer. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-5402?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2018-5402 published?

CVE-2018-5402 was published on 2018-10-08 and last updated on 2026-06-17.

CVE-2018-5402

CVE-2018-5402 is a critical-severity vulnerability in Auto-maskin Marine Pro Observer with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-310.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.5
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Auto-maskin Marine Pro Observer
Published: 2018-10-08
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2018-5402?: 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.
How severe is CVE-2018-5402?: CVE-2018-5402 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2018-5402 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-5402?: CVE-2018-5402 primarily affects Auto-maskin Marine Pro Observer. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-5402?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-5402 published?: CVE-2018-5402 was published on 2018-10-08 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:auto-maskin:rp_210e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:auto-maskin:dcu_210e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:a:auto-maskin:marine_pro_observer:-:*:*:*:*:android:*:*

More vulnerabilities in Auto-maskin Marine Pro Observer

CVE-2019-6560 — Critical (CVSS 9.1): In Auto-Maskin RP210E Versions 3.7 and prior, DCU210E Versions 3.7 and prior and Marine Observer Pro (Android App), the…
CVE-2018-5401 — Critical (CVSS 9.1): The Auto-Maskin DCU 210E, RP-210E, and Marine Pro Observer Android App transmit sensitive or security-critical data in…
CVE-2019-6558 — High (CVSS 7.5): In Auto-Maskin RP210E Versions 3.7 and prior, DCU210E Versions 3.7 and prior and Marine Observer Pro (Android App), the…

All CVEs affecting Auto-maskin Marine Pro Observer →

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