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File StationApplication · Qnap

CVE-2025-30279

HIGH · 8.8 CVSS v3.1 Published 2025-06-06
Fix available
A fix is available. Upgrade to 5.5.6.4847 or later.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An improper certificate validation vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to compromise the security of the system. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.4847 and later

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

This is an improper certificate validation vulnerability in QNAP File Station 5. The flaw allows an authenticated remote attacker to exploit weak or missing certificate validation checks to compromise system security, likely through man-in-the-middle attacks or spoofed SSL/TLS connections.

MitigationUpgrade File Station 5 to version 5.5.6.4847 or later. Additionally, enforce strong user account controls and limit exposure of File Station to untrusted networks since authentication is required for exploitation.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
File StationApplication
Affected:>= 5.5.6.4691, < 5.5.6.4847

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify File Station 5 is installed
    Access your QNAP NAS admin interface and navigate to the installed applications or App Center to confirm File Station 5 is present on the system.
    Affected if File Station 5 is not installed on the QNAP NAS, this CVE does not apply.
  2. Determine the installed File Station version
    In the QNAP admin interface, locate File Station settings or the application details section to view the currently installed version number.
    Affected if Unable to determine the version, assume the installed version may fall within the affected range.
  3. Compare version against affected range
    Check if the installed version is greater than or equal to 5.5.6.4691 AND less than 5.5.6.4847. This specific range must be met for the vulnerability to apply.
    Affected if The installed version is 5.5.6.4691 or higher but lower than 5.5.6.4847, indicating the improper certificate validation flaw is present.
  4. Confirm authentication is enabled
    Verify that user authentication is configured for File Station access. Check the File Station security settings to confirm local users or domain users can authenticate to the application.
    Affected if Authentication is disabled and File Station allows anonymous access, the specific exploitation path described in the CVE may differ, though the certificate validation flaw still exists in the code.

You are affected if File Station 5 is installed with a version between 5.5.6.4691 and 5.5.6.4847 inclusive, and user authentication is enabled for remote access.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 5.5.6.4847 or later
Fixed in 5.5.6.4847
Interim mitigation

Upgrade File Station 5 to version 5.5.6.4847 or later. Additionally, enforce strong user account controls and limit exposure of File Station to untrusted networks since authentication is required for exploitation.

Recommended fix High confidence

File Station 5 version 5.5.6.4847 or later

  1. 1. Check current File Station version via QNAP Control Panel > Applications > File Station > Settings
  2. 2. Access QNAP App Center or check for system updates
  3. 3. Update File Station to version 5.5.6.4847 or later
  4. 4. Verify the update was successful by checking the updated version number
  5. 5. Restart File Station service if prompted

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in File Station Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing3.0 h
  • Review / QA2.0 h
9.0 hours of engineering $1,570
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,512.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-30279 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data