CVE-2026-21005
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 · uneditedPath traversal in Smart Switch prior to version 3.7.69.15 allows adjacent attackers to overwrite arbitrary files with Smart Switch privilege.
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 path traversal vulnerability in Smart Switch versions before 3.7.69.15 allows an attacker with adjacent network access and Smart Switch application privileges to use directory traversal sequences (e.g., ../) to escape the intended directory and write files to arbitrary locations on the filesystem.
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< 3.7.69.15CVSS 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
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/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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Check installed Smart Switch versionOpen Smart Switch application, then go to Settings > About Smart Switch to view the version number, or check the application properties in Windows (right-click > Properties > Details) if installed as desktop softwareAffected if The version displayed is less than 3.7.69.15
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Verify Smart Switch service is running and accessibleCheck if the Smart Switch service is listening on network ports (commonly ports 8080, 8081, or 5555 for Samsung device connections) using netstat -an or by checking running servicesAffected if The service is exposed and accessible from the network without proper access controls
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Review network exposure of Smart SwitchCheck firewall rules and network configuration to determine if Smart Switch ports are open to untrusted network segments using netsh advfirewall firewall show rule name=all or equivalentAffected if Smart Switch ports are accessible from untrusted network segments rather than only localhost or trusted endpoints
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Check for directory traversal artifacts in logsReview Smart Switch application logs and system security logs for patterns containing ../ sequences or unusual file write operations in unexpected directoriesAffected if Logs show directory traversal attempts or unauthorized file writes outside the intended Smart Switch data directory
You are affected if the installed Smart Switch version is below 3.7.69.15 and the service is network-accessible from untrusted endpoints, since the vulnerability requires adjacent network access to exploit the path traversal.
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 · scoped3.7.69.15
Upgrade Smart Switch to version 3.7.69.15 or later. If immediate patching is not possible, restrict network access to the Smart Switch service to trusted endpoints only.
3.7.69.15 or later
- 1. Check the current installed version of Smart Switch on the device
- 2. Navigate to the official Samsung Smart Switch download page or your device's app store
- 3. Download Smart Switch version 3.7.69.15 or the latest available version
- 4. Install or update Smart Switch to the downloaded version
- 5. Verify the installation was successful by checking the updated version number
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-21005 — 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-2026-21005 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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