CVE-2017-18852
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 CSRF and authentication bypass. This affects R7300DST before 1.0.0.54, R8300 before 1.0.2.100_1.0.82, R8500 before 1.0.2.100_1.0.82, and WNDR3400v3 before 1.0.1.14.
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 confidenceMultiple NETGEAR router models (R7300DST, R8300, R8500, WNDR3400v3) contain CSRF and authentication bypass vulnerabilities in their firmware. These flaws allow remote attackers to bypass authentication mechanisms or trick authenticated users into executing unintended administrative actions via cross-site request forgery.
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< 1.0.0.54< 1.0.2.100_1.0.82< 1.0.2.100_1.0.82< 1.0.1.14CVSS 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
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 your NETGEAR router modelCheck the product label on the router bottom or the administrative web interface system info page for the exact model number (R7300dst, R8300, R8500, or WNDR3400v3)Affected if The model is one of R7300dst, R8300, R8500, or WNDR3400v3
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Check the installed firmware versionLog into the router web administrative interface, navigate to Administration > Router Update or Advanced > Administration > Firmware Update to view the current firmware versionAffected if The firmware version is below 1.0.0.54 for R7300dst, below 1.0.2.100_1.0.82 for R8300 or R8500, or below 1.0.1.14 for WNDR3400v3
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Verify web management interface accessibilityCheck the router's remote management settings under Advanced > Administration > Remote Management to determine if the web interface is accessible from WAN/outside networksAffected if Remote web management is enabled and the admin interface is reachable from untrusted networks (internet or guest networks)
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Review administrator accounts for unauthorized changesLog into the router and navigate to Advanced > Administration > Router Settings or User Management to inspect the list of administrative accountsAffected if Unexpected administrator accounts exist or recent configuration changes were made without your knowledge
You are affected if you own an R7300dst, R8300, R8500, or WNDR3400v3 router running firmware below the listed version thresholds AND the router administrative interface is accessible from untrusted networks.
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 data1.0.0.541.0.1.141.0.2.100_1.0.82
Apply the latest NETGEAR firmware updates for each affected model (R7300DST: 1.0.0.54+, R8300/R8500: 1.0.2.100_1.0.82+, WNDR3400v3: 1.0.1.14+). If updates are unavailable, restrict administrative web interface access to trusted internal networks only.
- Consultation4.0 h
- Implementation6.0 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-2017-18852 — 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-2017-18852 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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