CVE-2025-29878
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 NULL pointer dereference vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.4907 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 confidenceA NULL pointer dereference vulnerability in QNAP File Station 5 allows an authenticated remote attacker to cause a denial-of-service condition. The attacker must first obtain valid user credentials to exploit this flaw.
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, < 5.5.6.4907CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Confirm File Station is installedAccess QNAP admin console, go to App Center, or run `qpkg --list | grep -i file station` via SSH to verify File Station package is presentAffected if File Station is not installed, the vulnerability does not apply
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Retrieve File Station versionIn QNAP admin console, go to App Center > File Station > check version info, or run `qpkg --getpkgvar FileStation version` via SSHAffected if Unable to determine version - further investigation needed
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Compare version against affected rangeCheck if the installed version falls within >= 5.5.6.4691 and < 5.5.6.4907Affected if Version is 5.5.6.4691 through 5.5.6.4906 inclusive - the environment is vulnerable
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Verify user authentication is possibleReview user accounts configured on the QNAP device via Control Panel > User Management, noting that valid credentials are required for exploitationAffected if Any valid user accounts exist on the system, combined with vulnerable File Station version - exploitation is possible
If File Station version is 5.5.6.4691 through 5.5.6.4906 and the QNAP system has user accounts configured, the environment is affected by this CVE.
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 · scoped5.5.6.4907
Upgrade File Station to version 5.5.6.4907 or later. Additionally, enforce strong password policies and limit user account creation to reduce the likelihood of credential compromise.
File Station 5 version 5.5.6.4907 or later
- Check the current version of File Station 5 installed on the QNAP device
- If the version is 5.5.6.4691 or later but earlier than 5.5.6.4907, initiate an upgrade to File Station 5 version 5.5.6.4907 or later
- After upgrading, verify the installed version is 5.5.6.4907 or later to confirm the vulnerability is resolved
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation1.0 h
- Testing1.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-29878 — 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-2025-29878 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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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.
- 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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