CVE-2026-21404 NAVTOR NavBox Use of Hard-coded Credentials
A local attacker can extract hard-coded credentials from the SOAP interface to bypass authentication and modify files, requiring SOAP to be enabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-21404?
CVE-2026-21404 is a medium-severity vulnerability in NAVTOR NavBox, published on 4 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-798
Which versions are affected by CVE-2026-21404?
It affects 1 product.
Products include Navtor Navbox Firmware.
How do I fix CVE-2026-21404?
No fix has been published for CVE-2026-21404 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-21404 being exploited?
There is no known exploitation of CVE-2026-21404 in the wild and no public exploit code.
Other vulnerabilities in NAVTOR NavBox
Sources
Also known as GHSA-x454-wfv6-72h8.