Rbk752 FirmwareOperating system · Netgear

CVE-2020-14438

HIGH · 8.8 CVSS v3.1 Published 2020-06-18
Fix available
A fix is available. Upgrade to 3.2.15.25 or later.
See remediation →
93/100
Remediation priority · Urgent
No privileges Zero-click

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 · unedited
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects RBK752 before 3.2.15.25, RBK753 before 3.2.15.25, RBK753S before 3.2.15.25, RBR750 before 3.2.15.25, RBS750 before 3.2.15.25, RBK842 before 3.2.15.25, RBR840 before 3.2.15.25, RBS840 before 3.2.15.25, RBK852 before 3.2.15.25, RBK853 before 3.2.15.25, RBR850 before 3.2.15.25, and RBS850 before 3.2.15.25.

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 confidence

Command injection vulnerability in NETGEAR Orbi mesh WiFi systems (models RBK752, RBK753, RBR750, RBS750, RBK842, RBR840, RBS840, RBK852, RBK853, RBR850, RBS850) allowing unauthenticated attackers to execute arbitrary commands on affected devices via firmware versions prior to 3.2.15.25.

MitigationApply NETGEAR firmware version 3.2.15.25 or later to all affected Orbi devices (router and satellite units). If patching is not possible, restrict network access to the management interfaces.

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
Rbk752 FirmwareOperating system
Affected:< 3.2.15.25
Rbk753 FirmwareOperating system
Affected:< 3.2.15.25
Rbk753s FirmwareOperating system
Affected:< 3.2.15.25
Rbr750 FirmwareOperating system
Affected:< 3.2.15.25
Rbs750 FirmwareOperating system
Affected:< 3.2.15.25
Rbk842 FirmwareOperating system
Affected:< 3.2.15.25
Rbr840 FirmwareOperating system
Affected:< 3.2.15.25
Rbs840 FirmwareOperating system
Affected:< 3.2.15.25

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify the Orbi model number
    Check the device label on the router or satellite unit, or log into the web admin interface and look for the model number on the dashboard or status page
    Affected if The model is one of: RBK752, RBK753, RBR750, RBS750, RBK842, RBR840, RBS840, RBK852, RBR850, or RBS850 (or the listed Rbk753s variant)
  2. Check the firmware version
    Log into the Orbi web admin interface, navigate to Administration or Advanced settings, and locate the firmware version displayed on the main page or in the firmware update section
    Affected if The displayed firmware version is below 3.2.15.25 (for example, 3.2.14.10 or any version less than 3.2.15.25)
  3. Verify the vulnerability is reachable
    Determine if the Orbi management interface (HTTP/HTTPS on ports 80/443 or the admin web portal) is exposed to untrusted networks such as the public internet or guest WiFi segments
    Affected if The management interface is accessible from an untrusted network without VPN or firewall restrictions

You are affected if you have one of the listed Orbi models running firmware version 3.2.15.25 or lower, and the device management interface is reachable from an untrusted network.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Upgrade available Upgrade to 3.2.15.25 or later
Fixed in 3.2.15.25
Interim mitigation

Apply NETGEAR firmware version 3.2.15.25 or later to all affected Orbi devices (router and satellite units). If patching is not possible, restrict network access to the management interfaces.

Fix this in Rbk752 Firmware Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,980
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Scan for this in your stack

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dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2020-14438 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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