CVE-2021-45565
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 confidenceThis is an authenticated command injection vulnerability in NETGEAR Orbi mesh WiFi systems (RBK752, RBR750, RBS750, RBK852, RBR850, RBS850). An authenticated attacker can inject arbitrary commands through the web management interface, potentially achieving remote code execution on the affected device.
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 your Orbi modelLocate the model number on the device label or in the web management interface under 'Advanced' > 'Administration' > 'Router/System Info'Affected if The model is RBK752, RBR750, RBS750, RBK852, RBR850, or RBS850
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Check the installed firmware versionLog into the Orbi web interface and navigate to 'Advanced' > 'Administration' > 'Router/System Info' to view the firmware version, or check via the Orbi mobile app under device settingsAffected if The displayed firmware version is earlier than 3.2.16.6
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Confirm the firmware version comparisonCompare your firmware version number to 3.2.16.6 using standard version comparison (for example, 3.2.14.2 is earlier than 3.2.16.6)Affected if Your firmware version falls below 3.2.16.6 in the version numbering scheme
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Verify web management interface accessibilityCheck if the Orbi web interface (typically on ports 80 or 443) is reachable from network segments beyond your trusted local networkAffected if The web interface is exposed to untrusted networks and the firmware version is below 3.2.16.6
You are affected if your Orbi device is one of the listed models (RBK752, RBR750, RBS750, RBK852, RBR850, RBS850) and your current firmware version is earlier than 3.2.16.6.
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. This is a straightforward firmware update that can be applied through the device's web interface or mobile app.
Firmware version 3.2.16.6 or later for Rbk752, Rbr750, Rbs750, Rbk852, Rbr850, Rbs850
- Identify your specific NETGEAR Orbi model (RBK752, RBR750, RBS750, RBK852, RBR850, or RBS850)
- Navigate to the official NETGEAR support website at support.netgear.com
- Search for your model and download firmware version 3.2.16.6 or later
- Log in to your Orbi router's web interface (typically at orbilogin.com)
- Navigate to the Administration > Firmware Update section
- Upload the downloaded firmware file and apply the update
- Wait for the router to reboot and verify the update was successful
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-45565 — 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-2021-45565 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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- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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