CVE-2018-16200
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 · uneditedToshiba Home gateway HEM-GW16A 1.2.9 and earlier, Toshiba Home gateway HEM-GW26A 1.2.9 and earlier allows an attacker on the same network segment to execute arbitrary OS commands.
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 confidenceCommand injection vulnerability in Toshiba Home gateway HEM-GW16A and HEM-GW26A (firmware 1.2.9 and earlier) allows attackers on the same network segment to execute arbitrary OS commands via the web interface. This is a high-severity flaw requiring local network access but results in full 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<= 1.2.9<= 1.2.9CVSS 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 the device modelAccess the device admin interface or check device labeling to confirm the model is HEM-GW16A or HEM-GW26AAffected if Device is not a Toshiba HEM-GW16A or HEM-GW26A gateway - this CVE does not apply
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Check the installed firmware versionLog into the device web interface and navigate to the firmware or status page to view the current firmware version numberAffected if Firmware version is greater than 1.2.9 - the vulnerability exists only in version 1.2.9 and earlier
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Verify the web management interface is enabledAttempt to access the device web interface via HTTP/HTTPS on the gateway IP addressAffected if The command injection is delivered through the web interface - if the web interface is disabled or not accessible, the attack surface may be reduced
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Confirm network accessibilityDetermine if the device is on a network segment accessible to untrusted users or if it is properly isolatedAffected if The vulnerability requires an attacker on the same network segment - if the device is isolated from untrusted network access, exploitation is not possible from external locations
You are affected if you have a Toshiba HEM-GW16A or HEM-GW26A gateway running firmware version 1.2.9 or earlier with the web interface accessible to untrusted users on your network segment.
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 firmware update when available. If no patch exists, isolate affected gateways on a dedicated VLAN to limit exposure to local attackers only, and monitor for indicators of compromise.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,680.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-16200 — 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-2018-16200 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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