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PatchSiren cyber security CVE debrief

CVE-2026-2752 Navtor CVE debrief

CVE-2026-2752 is a medium-severity vulnerability in Navtor NavBox that allows information disclosure via the /api/ais-data endpoint. A remote, unauthenticated attacker can send crafted requests to trigger an unhandled exception, causing the server to return verbose .NET stack traces. These error messages expose internal class names, method calls, and third-party library references (e.g., System.Data.SQLite), which may assist attackers in mapping the application's internal structure.

Vendor
Navtor
Product
NavBox
CVSS
MEDIUM 5.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-03-06
Original CVE updated
2026-06-15
Advisory published
2026-03-06
Advisory updated
2026-06-15

Who should care

Users of Navtor NavBox, particularly those using version 4.12.0.3 or earlier, should be aware of this vulnerability and take steps to mitigate it.

Technical summary

The vulnerability has a CVSS score of 5.3 and is classified as CWE-209. It affects Navtor NavBox firmware versions prior to 4.16.2.4, specifically version 4.12.0.3.

Defensive priority

MEDIUM

Recommended defensive actions

  • Upgrade to a patched version of Navtor NavBox (4.16.2.4 or later).
  • Review and restrict access to the /api/ais-data endpoint.
  • Monitor for suspicious activity and error messages.

Evidence notes

The CVE record and NVD detail pages provide additional information on this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-2752 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-2752

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-2752 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-2752

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Mitigation or vendor reference

    Unverified legacy reference

    URL: https://cydome.io/vulnerability-advisory-cve-2026-2752-in-navtor-navbox-version-4-12-0-3

    56a186b1-7f5e-4314-ba38-38d5499fccfd - Third Party Advisory

  • Mitigation or vendor reference

    Unverified legacy reference

    URL: https://www.navtor.com/navtor-vendor-statement

    56a186b1-7f5e-4314-ba38-38d5499fccfd - Vendor Advisory

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.