CVE-2018-3907
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 · uneditedAn exploitable vulnerability exists in the REST parser of video-core's HTTP server of the Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17. The video-core process incorrectly handles pipelined HTTP requests, which allows successive requests to overwrite the previously parsed HTTP method, 'on_url' callback. An attacker can send an HTTP request to trigger this vulnerability.
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 confidenceThe video-core HTTP server in Samsung SmartThings Hub STH-ETH-250 (firmware 0.20.17) incorrectly handles HTTP pipelining, allowing successive requests to overwrite the previously parsed HTTP method and 'on_url' callback state. This memory corruption or state confusion could allow an attacker to manipulate which HTTP handlers execute, potentially leading to remote code execution.
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= 0.20.17CVSS 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
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- None
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/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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Identify the device modelLocate the device label or check the device management interface to confirm the model is STH-ETH-250 (Samsung SmartThings Hub)Affected if The device is not a Samsung SmartThings Hub STH-ETH-250 model, then this specific CVE does not apply
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Check the installed firmware versionAccess the device management interface or check the device settings to find the firmware version informationAffected if The firmware version is exactly 0.20.17 - only this exact version is affected; versions before or after may not be vulnerable
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Verify the video-core HTTP server is activeCheck if the device exposes HTTP services on the network, typically ports 80/443 or check running services on the deviceAffected if The video-core HTTP server is not running or accessible, the HTTP pipelining attack surface does not exist
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Confirm HTTP access is possibleAttempt to send HTTP requests to the device from an authorized network position or verify the HTTP interface respondsAffected if The HTTP interface is completely blocked or inaccessible, the vulnerability cannot be exploited though the vulnerable code may still be present
The environment is affected only if the device is a Samsung SmartThings Hub STH-ETH-250 with firmware version exactly 0.20.17 and the video-core HTTP server is accessible on the network.
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.
From vendor dataApply vendor-supplied firmware update from Samsung to address the HTTP parser state handling vulnerability; if unavailable, restrict network access to the device's HTTP interface.
- Consultation4.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-3907 — 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-2018-3907 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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