CVE-2016-10174
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 · uneditedThe NETGEAR WNR2000v5 router contains a buffer overflow in the hidden_lang_avi parameter when invoking the URL /apply.cgi?/lang_check.html. This buffer overflow can be exploited by an unauthenticated attacker to achieve remote code execution.
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 NETGEAR WNR2000v5 router contains a buffer overflow vulnerability in the hidden_lang_avi parameter when processing requests to /apply.cgi?/lang_check.html. An unauthenticated attacker can exploit this buffer overflow to achieve remote code execution on the affected device.
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 dataall versionsall versionsall versionsall versionsall versionsall versionsall versionsall versionsCVSS 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:3.1/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 checksWork through these to decide whether this CVE applies to you.
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Identify router modelCheck the device label on the router or log into the web interface and look for the model number in the status or administration pageAffected if The model number matches any of these: D6100, D7000, D7800, Jnr1010v2, Jnr3300, Jwnr2010v5, R2000, R6100, or WNR2000v5
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Check firmware versionLog into the router web interface and navigate to Administration > Firmware Update or Router Status to view the current firmware versionAffected if Any firmware version is installed on an affected model (all versions are vulnerable)
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Verify web interface is accessibleAttempt to access the router web interface by entering the router IP address in a web browser. Look for the login page or the lang_check.html pageAffected if The web interface is reachable from a network segment the defender controls or from the internet
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Identify vulnerable endpointInspect the router web interface for the lang_check.html page or check if apply.cgi responds to the hidden_lang_avi parameter by reviewing any accessible CGI endpointsAffected if The apply.cgi handler for lang_check.html is present and processes the hidden_lang_avi parameter
If the device is one of the affected Netgear models and the web interface with the apply.cgi handler is accessible, the environment is vulnerable to CVE-2016-10174.
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 the vendor-supplied firmware update when available. If no update exists, consider network segmentation or replacing the device with a supported model.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2016-10174 — 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-2016-10174 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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