CVE-2018-21169
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 incorrect configuration of security settings. This affects D7000 before 2018-03-01, D7800 before 1.0.1.31, D8500 before 1.0.3.36, JNR1010v2 before 1.1.0.46, JR6150 before 1.0.1.14, JWNR2010v5 before 1.1.0.46, PR2000 before 2018-03-01, R6050 before 1.0.1.14, R6220 before 1.1.0.60, R6400 before 1.1.0.26, R6400v2 before 1.0.2.46, R6700v2 before 1.2.0.2, R6800 before 1.2.0.2, R6900v2 before 1.2.0.2, R7300DST before 1.0.0.56, R7500 before 1.0.0.112, R7500v2 before 1.0.3.24, R7800 before 1.0.2.36, R7900P before 1.1.4.6, R8000P before 1.1.4.6, R8300 before 1.0.2.104, R8500 before 1.0.2.104, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.94, WNDR3700v5 before 1.1.0.50, WNDR4300 before 1.0.2.96, WNDR4300v2 before 1.0.0.52, WNDR4500v3 before 1.0.0.52, WNR1000v4 before 1.1.0.46, WNR2020 before 1.1.0.46, and WNR2050 before 1.1.0.46.
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 · moderate confidenceThis vulnerability involves incorrect configuration of security settings in multiple NETGEAR router models. The specific security misconfiguration is not detailed in the available information, but it affects numerous router firmware versions prior to the patched releases listed.
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< 2018-03-01< 1.0.1.31< 1.0.3.36< 1.1.0.46< 1.0.1.14< 1.1.0.46< 2018-03-01< 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
- 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 modelLocate the model number on the router device label or log into the router web admin interface (typically at 192.168.1.1) and check the status or dashboard page for the model nameAffected if Model is D7000, D7800, D8500, Jnr1010, Jr6150, Jwnr2010, PR2000, or R6050
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Locate firmware versionIn the router web admin interface, navigate to Router Status, Advanced tab, or Administration section to find the current firmware version displayedAffected if Firmware version cannot be determined or is not displayed
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Compare D7000 or PR2000 versionIf the router is D7000 or PR2000, check if the firmware version date is earlier than 2018-03-01. The firmware date is usually shown on the status page or in the firmware upgrade sectionAffected if Firmware date is before March 1, 2018
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Compare D7800 versionIf the router is D7800, check if the firmware version is less than 1.0.1.31Affected if Firmware version is below 1.0.1.31
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Compare D8500 versionIf the router is D8500, check if the firmware version is less than 1.0.3.36Affected if Firmware version is below 1.0.3.36
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Compare Jnr1010, Jr6150, Jwnr2010, or R6050 versionIf the router is Jnr1010, Jr6150, Jwnr2010, or R6050, check the firmware version against the respective threshold: Jnr1010 and Jwnr2010 should be below 1.1.0.46; Jr6150 and R6050 should be below 1.0.1.14Affected if Firmware version is below the specified threshold for that model
The environment is affected if the router model matches one of the eight listed models AND the installed firmware version is below the specified threshold for that model.
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 data1.0.1.141.0.1.311.0.3.36
Update the NETGEAR router firmware to the version specified in the advisory for each model (e.g., R6400 to version 1.1.0.26 or later).
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-21169 — 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-2018-21169 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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