CVE-2021-29092
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 · uneditedUnrestricted upload of file with dangerous type vulnerability in file management component in Synology Photo Station before 6.8.14-3500 allows remote authenticated users to execute arbitrary code via unspecified vectors.
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 confidenceUnrestricted file upload vulnerability in Synology Photo Station's file management component allows authenticated users to upload files with dangerous types (likely executable scripts) that can be accessed to achieve arbitrary code execution. The vulnerability exists in versions prior to 6.8.14-3500 and requires only standard authentication, not administrative privileges.
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>= 6.8, < 6.8.14-3500CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Confirm Photo Station is installedAccess Synology DiskStation Manager (DSM), navigate to Package Center, and look for Photo Station in the installed packages list. Alternatively, check if Photo Station web portal is accessible at /photo/ endpoint.Affected if Photo Station package is installed and running on the Synology device
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Determine Photo Station versionIn DSM Package Center, click on Photo Station and view the version information. Alternatively, access Photo Station directly and check Help > About. Compare the version number against the affected range: 6.8.0 to 6.8.13-3499.Affected if Installed version is 6.8.x where x is less than 14 (e.g., 6.8.13-3499 or earlier), placing it below 6.8.14-3500
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Verify user authentication is enabledCheck Photo Station settings under Privilege > Users and confirm standard (non-admin) user accounts exist and have access to Photo Station. The vulnerability requires only standard authenticated user access.Affected if Standard user accounts have Photo Station access and can log in to the application
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Check file upload functionalityLog in to Photo Station as a standard user, navigate to the file management or upload feature (typically under Albums or File Browser), and attempt to identify if arbitrary file types can be uploaded.Affected if File upload feature is accessible to standard authenticated users and accepts file type extensions without validation
You are affected if Photo Station is installed with a version between 6.8.0 and 6.8.13-3499 and standard authenticated users have access to the file upload feature.
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 · scoped6.8.14-3500
Upgrade Synology Photo Station to version 6.8.14-3500 or later to obtain the patch. If immediate patching is not possible, restrict file upload functionality or disable Photo Station until the upgrade can be applied.
Photo Station 6.8.14-3500 or later
- Log in to your Synology NAS with administrator privileges
- Open Package Center in DSM
- Locate Photo Station in the installed package list
- Check the current version to confirm it is below 6.8.14-3500
- In Package Center, click on Photo Station and select 'Update' to install the latest available version
- Verify the update completes successfully
- Confirm the installed version is now 6.8.14-3500 or later
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-29092 — 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-2021-29092 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
- No spam, self-promotion, credentials, or personal data