CVE-2021-45569
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 command injection by an authenticated user. This affects 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, and RBS850 before 3.2.16.6.
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 confidenceAuthenticated command injection vulnerability in NETGEAR Orbi mesh WiFi systems (RBK752, RBR750, RBS750, RBK852, RBR850, RBS850) allows authenticated users to execute arbitrary commands via unspecified input vectors. The flaw exists in firmware versions prior to 3.2.16.6.
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< 3.2.16.6< 3.2.16.6< 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
- Adjacent
- Complexity
- Low
- Privileges
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:A/AC:L/PR:H/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 Orbi device modelCheck the model number on the device label or in the router admin web interface under Advanced > Administration > Router InfoAffected if Model is RBK752, RBR750, RBS750, RBK852, RBR850, or RBS850
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Check installed firmware versionIn the router admin web interface, navigate to Advanced > Administration > Router Info and note the firmware version displayedAffected if Firmware version is earlier than 3.2.16.6
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Confirm remote management is enabledIn the router admin web interface, go to Advanced > Administration > Remote Management and check if remote management access is turned onAffected if Remote management or web interface access is enabled and exposed
The device is affected if it is one of the listed Orbi models (RBK752, RBR750, RBS750, RBK852, RBR850, RBS850) running firmware version lower than 3.2.16.6 and the web management interface is accessible to an authenticated user.
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.
dbcve · scoped3.2.16.6
Update NETGEAR Orbi firmware to version 3.2.16.6 or later. Apply the firmware update to all nodes in the mesh system, as the vulnerability affects the entire mesh network.
Firmware version 3.2.16.6 or later for the affected models (RBK752, RBR750, RBS750, RBK852, RBR850, RBS850)
- Log in to the NETGEAR router web interface by navigating to the router's IP address (typically 192.168.1.1 or routerlogin.net)
- Navigate to the 'Administration' or 'Advanced' section of the settings
- Select 'Firmware Update' or 'Router Update'
- Click 'Check for Updates' or use the manual upload option if you have downloaded firmware version 3.2.16.6
- If using manual upload, select the downloaded firmware file (.img or .chk) for your specific model (RBK752, RBR750, RBS750, RBK852, RBR850, or RBS850)
- Click 'Upload' or 'Update' to begin the firmware upgrade process
- Wait for the firmware to upload and install - do not power off the router during this process
- The router will reboot automatically after the update completes
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-45569 — 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-2021-45569 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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