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Hem Gw16a FirmwareOperating system · Toshiba

CVE-2017-2234

CRITICAL · 9.8 CVSS v3.0 Published 2017-07-07
Fix available
A fix is available. Upgrade to after 1.2.0 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
Toshiba Home gateway HEM-GW16A firmware HEM-GW16A-FW-V1.2.0 and earlier, Toshiba Home gateway HEM-GW26A firmware HEM-GW26A-FW-V1.2.0 and earlier may allow remote attackers to access a non-documented developer screen to perform operations on device with administrative privileges.

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 confidence

Toshiba home gateway devices HEM-GW16A and HEM-GW26A contain an undocumented developer screen accessible to remote attackers without authentication, granting full administrative privileges to the device.

MitigationApply available firmware updates from Toshiba; if no updates exist, disable remote management interfaces and segment the device on an isolated network to reduce attack surface.

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
Hem Gw16a FirmwareOperating system
Affected:<= 1.2.0
Hem Gw26a FirmwareOperating system
Affected:<= 1.2.0

CVSS 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
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify device model
    Access the device admin interface or check the device label to confirm the model is HEM-GW16A or HEM-GW26A
    Affected if Device model is HEM-GW16A or HEM-GW26A
  2. Check firmware version
    Navigate to the device admin panel, typically at the router gateway IP, and locate the firmware version under System Settings, Status, or About page. Compare the version number to the affected range.
    Affected if Firmware version is 1.2.0 or earlier
  3. Verify remote management is enabled
    Check the device configuration for remote management or web access settings, often found under Advanced, Management, or Security settings. Confirm if remote access from WAN/internet is permitted.
    Affected if Remote management interface is exposed to the network

You are affected if you have a Toshiba HEM-GW16A or HEM-GW26A device running firmware version 1.2.0 or earlier with remote management accessible.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Upgrade available Upgrade to a release after 1.2.0
Interim mitigation

Apply available firmware updates from Toshiba; if no updates exist, disable remote management interfaces and segment the device on an isolated network to reduce attack surface.

Fix this in Hem Gw16a Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,690
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,304.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2017-2234 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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