CVE-2026-21404 MEDIUM

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

Vendor Navtor
Product NavBox
Weakness CWE-798 · Hardcoded credentials
Published June 4, 2026
Last update June 5, 2026

CVSS base score

5.8/10
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS 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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 4, 2026 CVE published
June 5, 2026 Record updated