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R9000 FirmwareOperating system · Netgear

CVE-2019-20759

MEDIUM · 5.2 CVSS v3.1 Published 2020-04-16
Fix available
A fix is available. Upgrade to 1.0.4.26 or later.
See remediation →
55/100
Remediation priority · Elevated
No privileges

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
NETGEAR R9000 devices before 1.0.4.26 are affected by stored XSS.

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 · moderate confidence

NETGEAR R9000 routers running firmware versions prior to 1.0.4.26 contain a stored cross-site scripting (XSS) vulnerability. This allows authenticated attackers to embed malicious JavaScript into web interface parameters that persist on the device and execute in the browsers of other users viewing those parameters.

MitigationUpgrade NETGEAR R9000 firmware to version 1.0.4.26 or later to eliminate the stored XSS vector. Restrict administrative access to trusted networks until the patch is applied.

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
R9000 FirmwareOperating system
Affected:< 1.0.4.26

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
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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. Confirm NETGEAR R9000 device
    Access the router admin interface or check the device label/model number to verify the exact model is R9000
    Affected if The device is not a NETGEAR R9000 router
  2. Identify firmware version
    Log into the router web interface and navigate to the Administration or Firmware Update section to view the current firmware version, or check via telnet/SSH if enabled
    Affected if Unable to retrieve firmware version information
  3. Compare version against affected range
    Review the displayed firmware version and compare it numerically to 1.0.4.26 - note that versions like 1.0.4.24, 1.0.4.10, or any version below 1.0.4.26 are in the affected range
    Affected if Firmware version is less than 1.0.4.26
  4. Verify web interface accessibility
    Confirm the router web management interface (HTTP/HTTPS on ports 80 or 443) is accessible from your network
    Affected if The web interface is exposed and the firmware version is below 1.0.4.26

You are affected if you are running a NETGEAR R9000 router with firmware version less than 1.0.4.26 and the administrative web interface is accessible.

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 1.0.4.26 or later
Fixed in 1.0.4.26
Interim mitigation

Upgrade NETGEAR R9000 firmware to version 1.0.4.26 or later to eliminate the stored XSS vector. Restrict administrative access to trusted networks until the patch is applied.

Fix this in R9000 Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.

Scan for this in your stack

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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-2019-20759 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