Vulnerable Assets Library

A searchable database of maritime OT equipment with known vulnerabilities — covering navigation systems, engine automation, power management, and vessel control CBS from major marine vendors. Search by vendor, product family, or CVE ID to check whether equipment on your vessel has documented vulnerabilities requiring attention or patch management action.

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Audit Level: Tactical

Records optimised: 01.07.2026 16:57 UTC

CVE-2021-21003 — Phoenix Contact: FL SWITCH

Published: 2021-06-25 | Updated: 2024-09-17

MEDIUM 5.3

In Phoenix Contact FL SWITCH SMCS series products in multiple versions fragmented TCP-Packets may cause a Denial of Service of Web-, SNMP- and ICMP-Echo services. The switching functionality of the device is not affected.

CVSS VECTOR: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

NVD Record ↗ | Vendor Advisory / Fix ↗

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Disclaimer & Methodology

The Marine OT Vulnerable Assets Library is a curated repository of security advisories identified through automated heuristic filtering. Users should verify hardware revisions with manufacturers before patching.