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

Quick assessment

Affected
NAVTOR NavBox
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Navtor NavBox是挪威Navtor公司的一款用于船舶电子海图管理和航行数据同步的航运信息系统设备。 NAVTOR NavBox 4.16.1.20及之前版本存在信任管理问题漏洞，该漏洞源于Windows Communication Foundation实现中存在硬编码凭据，可能导致本地攻击者提取凭据绕过传输工作流。

CVSS 6.3 · Medium EPSS 0.12% · P2

Affected Version Matrix 2

VendorProduct Version RangeStatus
NAVTOR NavBox ≤ 4.16.1.20 affected
4.17.2.6 unaffected
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I. Basic Information for CVE-2026-21404

Vulnerability Information
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Vulnerability Title
NAVTOR NavBox Use of Hard-coded Credentials
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的凭证
Source: CVE Program / CVE List V5
Vulnerability Title
Navtor NavBox 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Navtor NavBox是挪威Navtor公司的一款用于船舶电子海图管理和航行数据同步的航运信息系统设备。 NAVTOR NavBox 4.16.1.20及之前版本存在信任管理问题漏洞，该漏洞源于Windows Communication Foundation实现中存在硬编码凭据，可能导致本地攻击者提取凭据绕过传输工作流。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
NAVTOR NavBox 0 ~ 4.16.1.20 -

II. Public POCs for CVE-2026-21404

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III. Intelligence Information for CVE-2026-21404

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Vendor Advisories for CVE-2026-21404 (2)

IV. Related Vulnerabilities

Same product: NavBox
Same vendor: NAVTOR
Same weakness: CWE-798