CVE-2017-18725
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 · uneditedCertain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D6200 before 1.1.00.24. R6700v2 before 1.1.0.42, R6800 before 1.1.0.42, and R6900v2 before 1.1.0.42.
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 confidenceStack-based buffer overflow vulnerability in NETGEAR router firmware (D6200, R6700v2, R6800, R6900v2) allows unauthenticated remote attackers to execute arbitrary code or cause denial of service via specially crafted HTTP requests.
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< 1.1.00.24< 1.1.0.42< 1.1.0.42< 1.1.0.42CVSS 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:3.1/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 router modelLog into the router web interface (typically 192.168.1.1) and check the device information page, or look at the physical device labelAffected if Model is D6200, R6700, R6700v2, R6800, R6900, or R6900v2
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Check installed firmware versionIn the router web interface, go to Administration > Firmware Update or Advanced > Administration > Router Update to view the current firmware versionAffected if Firmware version is below 1.1.00.24 for D6200, or below 1.1.0.42 for R6700/R6800/R6900 models
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Verify remote management statusIn the router web interface, go to Advanced > Administration > Remote Management (or similar) to check if remote access via HTTP/HTTPS is enabledAffected if Remote management is enabled and the router is accessible from the WAN (internet-facing)
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Confirm WAN accessibilityCheck your router's WAN IP address and attempt to access the login page from an external network, or check port forwarding/firewall rules that may expose the web interface to the internetAffected if The router web interface (port 80/443) is reachable from the internet
You are affected if you have a D6200, R6700, R6800, or R6900 router running firmware below the fixed versions AND your router's management interface is accessible from the WAN.
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 data1.1.00.241.1.0.42
Apply vendor-supplied firmware updates: D6200 to version 1.1.00.24 or later, R6700v2/R6800/R6900v2 to version 1.1.0.42 or later. If patching is not feasible, disable remote management interfaces and restrict access to local network only.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2017-18725 — 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-2017-18725 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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