Medium 6.3Published Jun 4, 2026

CVE-2026-21404NAVTOR NavBox Use of Hard-coded Credentials

Updated under an hour ago (Oct 27, 2026, 4:30 PM ET)

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It affects NAVTOR NavBox and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for NAVTOR NavBox

Exploited in the last 30 days

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.

CVSS: 6.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
Weakness (CWE): CWE-798
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: icscert
NVD analysis: Analyzed
Record last updated: Jun 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

NAVTOR NavBox navtor:navbox (from the name)	through 4.16.1.20; 4.17.2.6 not affected	CNA record
navtor navbox_firmware navtor:navbox_firmware	through 4.16.1.20	NVD

References

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-155-01	mitigation, us-government-resource
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-155-01.json	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.