CVE•Published 2026-06-04•Modified 2026-06-05•0 articles on news•5 live references•NVD data
CVE-2026-21404
Vulnerability data via NVD (ingested)
CVSS v3.1
6.3
MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
EPSS percentile
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Weaknesses (CWE)
Description
NAVTOR NavBox through version 4.16.1.20 contains hard-coded credentials within its Windows Communication Foundation (SOAP) implementation. If the SOAP functionality is enabled, a local attacker can extract credentials to bypass the intended transfer workflow. Successful authentication against the SOAP interface grants access to privileged WCF methods, enabling an attacker to write or overwrite files within application-defined paths.
Timeline
Published 2026-06-04
Modified 2026-06-05
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-21404Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-21404Censys host search filtered to this CVE id.
grep.app
CVE-2026-21404Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-21404GitHub code search for direct mentions.
Google dork
"CVE-2026-21404" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-21404 on GitHub.
We haven't classified any articles referencing CVE-2026-21404 yet. The external references above still apply.