CVE-2025-33035
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 · uneditedA path traversal vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to read the contents of unexpected files or system data. 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 · high confidenceThis is a path traversal vulnerability in File Station 5 that allows a remote attacker with a valid user account to escape the intended directory boundaries and read arbitrary files on the filesystem, potentially exposing sensitive system data.
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>= 5.5.6.4691, < 5.5.6.4847CVSS 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
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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 checksWork through these to decide whether this CVE applies to you.
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Verify File Station 5 is installedAccess QNAP NAS admin interface, navigate to App Center or Control Panel, locate File Station application and note its presence and version numberAffected if File Station 5 is not installed or not present on the system
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Check installed File Station versionIn QNAP admin interface, go to App Center, find File Station, view its version details. Alternatively, use QNAP CLI: run 'qpkg -g FileStation' or check '/share/CACHEDEV1_DATA/.qpkg/FileStation/' directory for version infoAffected if Installed version is >= 5.5.6.4691 and < 5.5.6.4847
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Confirm remote access is enabledCheck QNAP router or NAS network settings to determine if File Station is accessible from external networks (via myqnapcloud, port forwarding, or VPN configuration)Affected if File Station is reachable from external networks and version falls within affected range
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Verify user account configurationCheck if any local or domain user accounts exist on the NAS by navigating to Control Panel > Privilege > Users in the QNAP admin interfaceAffected if At least one valid user account exists and File Station version is within affected range
User is affected if File Station 5 is installed with version >= 5.5.6.4691 and < 5.5.6.4847 and is accessible remotely or has user accounts that could be compromised
Generated from the published advisory. Verify against your own configuration.
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 · scoped5.5.6.4847
Upgrade File Station to version 5.5.6.4847 or later. This is a straightforward version update that patches the path traversal vulnerability.
File Station 5 version 5.5.6.4847 or later
- 1. Identify the current version of File Station 5 installed on the QNAP device.
- 2. Navigate to the QNAP App Center or File Station settings to check for updates.
- 3. Update File Station 5 to version 5.5.6.4847 or later.
- 4. Verify the update was successful by checking the File Station version in the application settings.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,512.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-33035 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-33035 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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