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-2021-27393 — Siemens: Nucleus NET
Published: 2021-04-22 | Updated: 2024-08-03
N/A 0A vulnerability has been identified in Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2013.08), Nucleus Source Code (Versions including affected DNS modules). The DNS client does not properly randomize UDP port numbers of DNS requests. That could allow an attacker to poison the DNS cache or spoof DNS resolving.
CVSS VECTOR: N/A
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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.