CVE-2023-28337
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 · uneditedWhen uploading a firmware image to a Netgear Nighthawk Wifi6 Router (RAX30), a hidden “forceFWUpdate” parameter may be provided to force the upgrade to complete and bypass certain validation checks. End users can use this to upload modified, unofficial, and potentially malicious firmware to the device.
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 confidenceThe Netgear Nighthawk RAX30 router's firmware upload mechanism contains a hidden 'forceFWUpdate' parameter that allows bypassing validation checks. This enables attackers to upload modified, unofficial firmware images that could contain malicious code, potentially leading to complete device compromise and persistent backdoors.
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 dataall versionsCVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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 the device modelLog into the router admin interface and check the device information page, or look at the physical device label to confirm the model is Netgear RAX30Affected if The device model is Netgear RAX30
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Check the current firmware versionIn the router admin panel, navigate to the Advanced tab or Administration section and locate the firmware version displayed on the status or about pageAffected if The firmware version is any version of the Netgear RAX30 (all versions are affected)
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Assess administrative interface exposureDetermine if the router web management interface (default on port 80/443) is accessible from the internet or an untrusted network by checking your firewall rules and port forwarding configurationsAffected if The administrative interface is accessible from untrusted networks (WAN) without VPN or authentication barriers
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Verify firmware integrityCompare the currently installed firmware hash/signature against the official firmware files published on the Netgear support site, or check if the installed firmware matches a known official versionAffected if The installed firmware does not match an official Netgear release or has an unexpected hash
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Monitor for unauthorized configuration changesReview router configuration backups taken at different times for unexpected changes, particularly to firmware upload settings, admin accounts, or network rulesAffected if Unexpected changes exist in router configuration or new admin accounts have been added
Your environment is affected if you operate a Netgear RAX30 router with any firmware version and the administrative interface is accessible to untrusted networks or you detect unauthorized firmware changes.
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 dataApply the vendor-supplied firmware patch when available; until then, restrict administrative access to the firmware upload interface, monitor for unauthorized firmware changes, and consider network segmentation of affected devices.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-28337 — 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-2023-28337 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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