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CVE-2026-2753 Navtor CVE debrief

CVE-2026-2753 is a HIGH-severity vulnerability in Navtor NavBox, with a CVSS score of 7.5. The vulnerability exists due to improper sanitization of user-supplied path input in the exposed HTTP service. This allows unauthenticated remote attackers to submit requests containing absolute filesystem paths, potentially leading to the exposure of sensitive configuration files and system information.

Vendor
Navtor
Product
NavBox
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-03-06
Original CVE updated
2026-06-05
Advisory published
2026-03-06
Advisory updated
2026-06-05

Who should care

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

Technical summary

The vulnerability is caused by the application's failure to properly sanitize user-supplied path input. This allows attackers to retrieve arbitrary files from the underlying filesystem, limited only by the privileges of the service process.

Defensive priority

HIGH

Recommended defensive actions

  • Upgrade to a version of Navtor NavBox that is not vulnerable (e.g., version 4.14.1.2 or later).
  • Implement proper input validation and sanitization for user-supplied path input.
  • Restrict access to the HTTP service to only trusted users and networks.

Evidence notes

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

Sources and references

Verified primary and authoritative sources

  • CVE-2026-2753 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-2753

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

  • CVE-2026-2753 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-2753

    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-2026-2753-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.