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File StationApplication · Qnap

CVE-2025-53410

MEDIUM · 6.5 CVSS v3.1 Published 2025-11-07
Fix available
A fix is available. Upgrade to 5.5.6.5018 or later.
See remediation →
71/100
Remediation priority · Elevated
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 allocation of resources without limits or throttling vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to prevent other systems, applications, or processes from accessing the same type of resource. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5018 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 authenticated resource exhaustion vulnerability in QNAP File Station 5 where the application fails to impose limits or throttling on resource allocation. A user who has obtained valid credentials can exploit this to consume excessive resources (likely storage, file handles, or similar), thereby preventing other users or processes from accessing the same resource type, resulting in denial of service.

MitigationUpgrade File Station 5 to version 5.5.6.5018 or later, which contains the vendor patch that implements proper resource limits and throttling.

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, < 5.5.6.5018

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
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 the QNAP admin interface and navigate to App Center or use the QNAP CLI to list installed applications. Confirm that File Station 5 (not an earlier version) is present.
    Affected if File Station 5 is not installed, this CVE does not apply.
  2. Locate the installed version number
    In the QNAP App Center, click on File Station 5 and view the version information. Alternatively, access the device via SSH and use the QNAP package manager command to query the installed File Station version.
    Affected if Unable to determine the version, manual verification is required.
  3. Compare version against affected range
    Check if the installed version falls within >= 5.5.6.4691 AND < 5.5.6.5018. Note that version 5.5.6.5018 itself is not affected.
    Affected if Installed version is 5.5.6.4691 or higher but below 5.5.6.5018, the environment is vulnerable.
  4. Confirm authentication requirements
    This vulnerability requires a valid user account with credentials to exploit. Review whether user authentication is enabled and user accounts exist on the QNAP device.
    Affected if The device has no user accounts or authentication is disabled, the exploit path is reduced but the software vulnerability still exists in the affected versions.

If File Station 5 is installed with version 5.5.6.4691 or higher but lower than 5.5.6.5018, the environment is affected by this resource exhaustion vulnerability.

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 5.5.6.5018 or later
Fixed in 5.5.6.5018
Interim mitigation

Upgrade File Station 5 to version 5.5.6.5018 or later, which contains the vendor patch that implements proper resource limits and throttling.

Recommended fix High confidence

File Station 5.5.6.5018 or later

  1. Log in to the QNAP NAS admin interface
  2. Navigate to File Station application
  3. Check current installed version (should be >= 5.5.6.4691 and < 5.5.6.5018)
  4. Update File Station to version 5.5.6.5018 or later via QNAP App Center or firmware update
  5. Restart the File Station service if prompted
  6. Verify the installed version is 5.5.6.5018 or higher

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
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.

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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-2025-53410 in production — separate from our analysis above.

No notes yet

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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