CVE-2020-26906
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 administrative credentials. This affects CBR40 before 2.5.0.10, RBK752 before 3.2.15.25, RBR750 before 3.2.15.25, RBS750 before 3.2.15.25, RBK852 before 3.2.10.11, RBR850 before 3.2.10.11, and RBS850 before 3.2.10.11.
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 confidenceNETGEAR Orbi mesh WiFi systems (RBK752, RBR750, RBS750, RBK852, RBR850, RBS850) and CBR40 cable modem/router contain a vulnerability allowing unauthorized disclosure of administrative credentials, enabling attackers to gain full administrative access to the affected devices.
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< 2.5.0.10< 3.2.15.25< 3.2.15.25< 3.2.15.25< 3.2.10.11< 3.2.10.11< 3.2.10.11CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:A/AC:L/PR:N/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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Check device firmware versionLog into the NETGEAR web admin interface (typically at 192.168.1.1 or 10.0.0.1). Navigate to Administration > Router Info or Settings > About. Record the firmware version displayed.Affected if The displayed firmware version is lower than the patched version for your model: CBR40 < 2.5.0.10, RBK752/RBR750/RBS750 < 3.2.15.25, or RBK852/RBR850/RBS850 < 3.2.10.11
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Verify device modelConfirm the exact model number of your device by checking the product label on the device itself or the web admin interface.Affected if The device model is one of: CBR40, RBK752, RBR750, RBS750, RBK852, RBR850, or RBS850, and the firmware version is below the respective threshold.
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Check if remote management is enabledIn the web admin interface, navigate to Advanced > Remote Management or Administration > Remote Management. Verify whether the 'Enable Remote Management' or 'Allow remote access' option is checked.Affected if Remote management is enabled, which would allow the credential disclosure to be exploited by external attackers on the internet.
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Review admin user accountsIn the web admin interface, go to Administration > User or Advanced > Administration > User Management. Check for any unauthorized or unexpected admin accounts beyond what you configured.Affected if Unexpected admin accounts exist, which may indicate the vulnerability has been exploited.
You are affected if your device model is one of the listed models and your current firmware version is below the patched version threshold, especially if remote management is enabled.
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 data2.5.0.103.2.10.113.2.15.25
Update NETGEAR device firmware to the specified patched versions (CBR40 to 2.5.0.10 or later, RBK752/RBR750/RBS750 to 3.2.15.25 or later, RBK852/RBR850/RBS850 to 3.2.10.11 or later). If patching is not immediately possible, restrict administrative interface access to trusted networks only and monitor for unauthorized access.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2020-26906 — 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-2020-26906 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