CVE-2020-35802
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 CBR40 before 2.5.0.14, RBW30 before 2.6.1.4, RAX75 before 1.0.3.102, RAX80 before 1.0.3.102, RBK752 before 3.2.16.6, RBR750 before 3.2.16.6, RBS750 before 3.2.16.6, RBK852 before 3.2.16.6, RBR850 before 3.2.16.6, RBS850 before 3.2.16.6, RBK842 before 3.2.16.6, RBR840 before 3.2.16.6, RBS840 before 3.2.16.6, and RBS40V before 2.6.1.4.
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 confidenceThis is a sensitive information disclosure vulnerability affecting multiple NETGEAR router and mesh WiFi system models. An unauthenticated attacker could potentially access sensitive information on affected devices due to improper access controls.
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< 2.5.0.14< 2.6.1.4< 1.0.3.102< 1.0.3.102< 3.2.16.6< 3.2.16.6< 3.2.16.6< 3.2.16.6CVSS 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 the NETGEAR device modelAccess the router admin web interface (typically at http://routerlogin.net or http://192.168.1.1) and look for the device model name displayed on the dashboard or in the Settings > About sectionAffected if The device model matches any of: CBR40, RBW30, RAX75, RAX80, RBK752, RBR750, RBS750, or RBK852
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Check the installed firmware versionIn the router admin web interface, navigate to Settings > Administration > Firmware Update or the About page to view the current firmware version installed on the deviceAffected if The firmware version cannot be determined or is not visible in the admin interface (access may be blocked)
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Compare firmware version against affected rangesNote the firmware version number and compare it to the affected version ranges: CBR40 < 2.5.0.14, RBW30 < 2.6.1.4, RAX75/RAX80 < 1.0.3.102, RBK752/RBR750/RBS750/RBK852 < 3.2.16.6Affected if The installed firmware version is lower than the fixed version for your specific model (e.g., CBR40 below 2.5.0.14, RBR750 below 3.2.16.6, etc.)
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Verify access control exposure (optional)From an unauthenticated perspective on the network, attempt to access common sensitive endpoints such as /modals/ or other web paths that may return device configuration or diagnostic information without loginAffected if Sensitive device information, configuration data, or diagnostic output is returned without requiring authentication
You are affected if your NETGEAR router or mesh system model matches one of the listed models and your installed firmware version is below the specified fix 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 data1.0.3.1022.5.0.142.6.1.4
Update firmware to the specified versions: CBR40 to 2.5.0.14, RBW30/RBS40V to 2.6.1.4, RAX75/RAX80 to 1.0.3.102, and RBK752/RBR750/RBS750/RBK852/RBR850/SBS850/RBK842/RBR840/RBS840 to 3.2.16.6.
- 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-2020-35802 — 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-2020-35802 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
- No spam, self-promotion, credentials, or personal data