CVE-2017-2186
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 · uneditedHOME SPOT CUBE2 firmware V101 and earlier allows an attacker to bypass authentication to load malicious firmware via WebUI.
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 confidenceThe HOME SPOT CUBE2 router firmware V101 and earlier contains an authentication bypass vulnerability in its WebUI interface that allows unauthenticated attackers to upload and load malicious firmware images, potentially achieving remote code execution or complete device compromise.
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= v100= v101CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:A/AC:L/PR:N/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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Identify device modelLog into the router admin interface or check the device label to confirm the model is KDDI Home Spot Cube 2Affected if The device is not a KDDI Home Spot Cube 2 router, then this CVE does not apply
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Check firmware versionAccess the router WebUI admin panel and navigate to the firmware or status page to view the installed firmware version. Alternatively, check the firmware file name if you have access to the firmware binaryAffected if Firmware version is v100 or v101, meaning the device is running an affected version
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Verify WebUI accessibilityAttempt to access the router WebUI interface from a browser by entering the router IP address. Check if the login page is reachable without any credentialsAffected if The WebUI interface is exposed and accessible (either locally or remotely) on versions v100 or v101, the authentication bypass can be exploited
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Check remote management settingIn the router WebUI, locate the remote management or remote access settings (often under Administration or Network settings) and determine if remote WebUI access is enabledAffected if Remote management/WebUI access is enabled on affected firmware versions, the device is vulnerable to unauthenticated attacks from remote networks
If the device is a KDDI Home Spot Cube 2 running firmware v100 or v101 and its WebUI interface is accessible, the device is affected by this authentication bypass vulnerability and could allow unauthenticated firmware uploads.
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 dataUpgrade firmware to a version beyond V101; if immediate patching is not possible, restrict administrative WebUI access to trusted networks or disable remote management interfaces.
- Consultation4.0 h
- Implementation6.0 h
- Testing4.0 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 $4,544.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-2186 — 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-2017-2186 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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