CVE-2026-21404

NAVTOR NavBox Use of Hard-coded Credentials

Published Jun 4, 2026 CVSS 4.0 · 5.8 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

NAVTOR has released a patch for NavBox in April 2026. Version 4.17.2.6 and later includes the fix. Users that have an active NavBox connection will automatically be kept up to date with the latest version. No user action required.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Navtor
Navtor navbox
Vendors & Products Navtor
Navtor navbox
Type Values Removed Values Added
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.
Title NAVTOR NavBox Use of Hard-coded Credentials
Weaknesses CWE-798
References
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H'}

cvssV4_0

{'score': 5.8, 'vector': 'CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Jun 5, 2026, 6:26 PM
Reserved
Jan 27, 2026, 11:33 PM
Status
Analyzed
Published
Jun 4, 2026, 8:16 PM
Modified
Jul 22, 2026, 8:10 PM