CVE-2018-21168
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 disclosure of sensitive information. This affects D7000 before 1.0.1.52, 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 1.0.0.20, 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 confidenceNETGEAR router firmware contains a vulnerability allowing unauthorized disclosure of sensitive information. The specific attack vector and nature of the exposed data are not detailed in the CVE, but the flaw is present in the web management interface or related components of the specified router models running firmware versions prior to the patched releases.
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< 1.0.1.52< 1.0.1.31< 1.0.3.36< 1.1.0.46< 1.0.1.14< 1.1.0.46< 1.0.0.20< 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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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 device label or access the router admin interface (typically at 192.168.1.1) and check the status or device info pageAffected if The model matches one of the affected models: D7000, D7800, D8500, Jnr1010, Jr6150, Jwnr2010, PR2000, or R6050
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Check installed firmware versionLog into the router web admin interface, navigate to the Firmware Update or Administration section, and record the current firmware version shownAffected if The displayed firmware version is lower than the patched version for your model (D7000 < 1.0.1.52, D7800 < 1.0.1.31, D8500 < 1.0.3.36, Jnr1010 < 1.0.1.46, Jr6150 < 1.0.1.14, Jwnr2010 < 1.0.1.46, PR2000 < 1.0.0.20, R6050 < 1.0.1.14)
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Verify web management interface exposureCheck router firewall or remote management settings. Confirm whether the web admin interface (HTTP/HTTPS on ports 80/443) is accessible from the WAN/internet rather than LAN onlyAffected if Remote management is enabled and the admin interface is reachable from outside the local network
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Check for unauthorized access indicatorsReview router logs (typically in Administration > Logs) for unfamiliar IP addresses, repeated login attempts, or unexpected configuration changesAffected if Logs show unknown external IPs accessing the admin interface or suspicious activity patterns
You are affected if your router model matches one of the listed models AND your current firmware version falls below the patched version for that model, especially if the web management interface is exposed to the internet.
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 data1.0.0.201.0.1.141.0.1.31
Update affected NETGEAR router firmware to the versions specified in the CVE (e.g., D7000 to 1.0.1.52, R7800 to 1.0.2.36, R9000 to 1.0.2.52). If updates are unavailable, restrict administrative access to trusted networks only and monitor for unauthorized access attempts.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-21168 — 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-2018-21168 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
- No spam, self-promotion, credentials, or personal data