CVE-2017-18722
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) allowing unauthenticated remote code execution or denial of service due to improper bounds checking in certain firmware versions.
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 modelCheck the product label on the device or access the router web interface to confirm the exact model number (D6200, R6700v2, R6800, or R6900v2)Affected if Model is D6200, R6700v2, R6800, or R6900v2
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Access firmware version informationLog into the router web interface and navigate to the Administration or Advanced settings section to view the current firmware version, or use the router's status pageAffected if Unable to retrieve firmware version information
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Compare D6200 version against thresholdIf the router is a D6200, compare the installed firmware version to 1.1.00.24 - versions below this number are affectedAffected if Installed version is lower than 1.1.00.24 on a D6700
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Compare R6700/R6800/R6900 version against thresholdIf the router is an R6700v2, R6800, or R6900v2, compare the installed firmware version to 1.1.0.42 - versions below this number are affectedAffected if Installed version is lower than 1.1.0.42 on an R6700v2, R6800, or R6900v2
The device is affected if it is a D6200 with firmware below 1.1.00.24, or an R6700v2/R6800/R6900v2 with firmware below 1.1.0.42.
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 firmware updates (D6200 to 1.1.00.24+, R6700v2/R6800/R6900v2 to 1.1.0.42+). If patching is not feasible, restrict access to the device management interface from untrusted networks.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-18722 — 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-2017-18722 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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