Auth bypass in Navtor Navbox
CVE-2026-2754
Navtor NavBox exposes sensitive configuration and operational data due to missing authentication on HTTP API endpoints. An unauthenticated remote attacker with network access to the device can execute HTTP GET requests to TCP port 8080 to retrieve internal network parameters including ECDIS & OT Information, device identifiers, and service status logs.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (48.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.001
Affected products
- Navtor Navbox — versions 4.12.0.3, 4.16.2.4
- Navtor Navbox Firmware
Weakness classification (CWE)
References
- 56a186b1-7f5e-4314-ba38-38d5499fccfd (technical-description, Third Party Advisory)
- 56a186b1-7f5e-4314-ba38-38d5499fccfd (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-2754?
- CVE-2026-2754 is a high-severity vulnerability in Navtor Navbox, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2026-03-06.
- How severe is CVE-2026-2754?
- High severity. CVSS v3 base score is 7.5 out of 10.