CVE-2017-18728
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 in NETGEAR router firmware (D6200, R6700v2, R6800, R6900v2) allows remote code execution by unauthenticated attackers. The vulnerability exists in pre-patch firmware versions and can be exploited without authentication, granting attackers potentially full device control.
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 modelAccess the router web interface status page or check the physical device label to determine the exact model number (D6200, R6700v2, R6800, or R6900v2)Affected if Model is D6200, R6700v2, R6800, or R6900v2
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Determine installed firmware versionLog into the router web interface and navigate to the status or administration page to view the current firmware version, or access the router via CLI if enabledAffected if Firmware version cannot be determined or is below the fixed version
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Compare D6200 version against thresholdIf the router is a D6200, compare the installed firmware version number to 1.1.00.24Affected if D6200 firmware version is less than 1.1.00.24
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Compare R6700/R6800/R6900 version against thresholdIf the router is an R6700v2, R6800, or R6900v2, compare the installed firmware version number to 1.1.0.42Affected if R6700v2, R6800, or R6900v2 firmware version is less than 1.1.0.42
If the router model is D6200, R6700v2, R6800, or R6900v2 and the installed firmware version is below 1.1.00.24 for D6200 or below 1.1.0.42 for the R-series models, the device is affected by this vulnerability.
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
Update affected NETGEAR devices to firmware versions D6200 1.1.00.24 or later, R6700v2/R6800/R6900v2 1.1.0.42 or later. If patching is not immediately possible, restrict WAN-side access to management interfaces.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-18728 — 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-2017-18728 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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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.
- 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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