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D3600 FirmwareOperating system · Netgear

CVE-2019-20730

CRITICAL · 9.8 CVSS v3.1 Published 2020-04-16
Fix available
A fix is available. Upgrade to 1.0.0.40 / 1.0.0.68 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable 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 SQL injection. This affects D3600 before 1.0.0.68, D6000 before 1.0.0.68, D6200 before 1.1.00.28, D6220 before 1.0.0.40, D6400 before 1.0.0.74, D7000 before 1.0.1.60, D7000v2 before 1.0.0.74, D7800 before 1.0.1.34, D8500 before 1.0.3.39, DC112A before 1.0.0.40, EX8000 before 1.0.0.118, JR6150 before 1.0.1.18, R6050 before 1.0.1.18, R6220 before 1.1.0.66, R6250 before 1.0.4.26, R6300v2 before 1.0.4.24, R6400 before 1.0.1.36, R6400v2 before 1.0.2.52, R6700 before 1.0.1.44, R6700v2 before 1.2.0.16, R6800 before 1.2.0.16, R6900v2 before 1.2.0.16, R6900 before 1.0.1.44, R7000 before 1.0.9.26, R6900P before 1.3.0.20, R7000P before 1.3.0.20, R7100LG before 1.0.0.40, R7300DST before 1.0.0.62, R7500 before 1.0.0.118, R7500v2 before 1.0.3.26, R7800 before 1.0.2.40, R7900 before 1.0.2.10, R8000 before 1.0.4.12, R7900P before 1.3.0.10, R8000P before 1.3.0.10, R8300 before 1.0.2.116, R8500 before 1.0.2.116, R8900 before 1.0.3.6, R9000 before 1.0.3.10, WNDR3700v4 before 1.0.2.102, WNDR3700v5 before 1.1.0.54, WNDR4300v1 before 1.0.2.98, WNDR4300v2 before 1.0.0.56, and WNDR4500v3 before 1.0.0.56.

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

SQL injection vulnerability in NETGEAR router web management interfaces allows remote attackers to execute arbitrary SQL queries via unsanitized input parameters. This affects the administration panel of numerous NETGEAR device models running firmware versions prior to the specified patch thresholds.

MitigationApply vendor-supplied firmware updates to all affected devices. If updates are unavailable, restrict or disable remote web management access and isolate devices on isolated network segments.

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
D3600 FirmwareOperating system
Affected:< 1.0.0.68
D6000 FirmwareOperating system
Affected:< 1.0.0.68
D6200 FirmwareOperating system
Affected:< 1.1.00.28
D6220 FirmwareOperating system
Affected:< 1.0.0.40
D6400 FirmwareOperating system
Affected:< 1.0.0.74
D7000 FirmwareOperating system
Affected:< 1.0.1.60< 1.0.0.74
D7800 FirmwareOperating system
Affected:< 1.0.1.34
D8500 FirmwareOperating system
Affected:< 1.0.3.39

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
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/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 your NETGEAR router model
    Locate the model number on the device label or access the router admin panel (typically 192.168.1.1) and check the status or administration page
    Affected if The device is a D3600, D6000, D6200, D6220, D6400, D7000, D7800, or D8500 model
  2. Check the installed firmware version
    In the router web admin panel, navigate to the Administration or Firmware Update section and note the displayed firmware version number
    Affected if The firmware version is below 1.0.0.68 (D3600/D6000), 1.1.00.28 (D6200), 1.0.0.40 (D6220), 1.0.0.74 (D6400), 1.0.1.60 or 1.0.0.74 (D7000), 1.0.1.34 (D7800), or 1.0.3.39 (D8500)
  3. Verify if web management interface is enabled
    In the router settings, look for 'Remote Management', 'Web Management Access', or 'Administration' settings and check whether the web interface is turned on
    Affected if The router web management interface is enabled and accessible

You are affected if you own one of the listed NETGEAR models AND your firmware version is below the threshold AND the web management interface is enabled.

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.

dbcve · scoped
Upgrade available Upgrade to 1.0.0.40 / 1.0.0.68 / 1.0.0.74 or later
Fixed in 1.0.0.401.0.0.681.0.0.74
Interim mitigation

Apply vendor-supplied firmware updates to all affected devices. If updates are unavailable, restrict or disable remote web management access and isolate devices on isolated network segments.

Recommended fix High confidence

Firmware version >= 1.0.0.68 for D3600/D6000; >= 1.1.00.28 for D6200; >= 1.0.0.40 for D6220; >= 1.0.0.74 for D6400; >= 1.0.1.60 for D7000 (or >= 1.0.0.74 for D7000v2); >= 1.0.1.34 for D7800; >= 1.0.3.39 for D8500

  1. 1. Identify the exact NETGEAR router model number (e.g., D3600, D7000, R7000)
  2. 2. Check the current firmware version by logging into the router web interface and navigating to Advanced > Administration > Firmware Update
  3. 3. Visit the NETGEAR support page (support.netgear.com) and search for your specific model number
  4. 4. Locate the firmware download section and download the latest firmware version that matches or exceeds the fixed version for your model: D3600/D6000: 1.0.0.68, D6200: 1.1.00.28, D6220: 1.0.0.40, D6400: 1.0.0.74, D7000: 1.0.1.60 (v2: 1.0.0.74), D7800: 1.0.1.34, D8500: 1.0.3.39
  5. 5. In the router's web interface, go to Advanced > Administration > Firmware Update > Upload
  6. 6. Select the downloaded firmware file and click Upload to begin the upgrade process
  7. 7. Wait for the firmware to upload and install - do not power off the router during this process
  8. 8. The router will automatically reboot; log back in and verify the new firmware version is installed
Caveat Firmware upgrades may reset some custom configurations to defaults; reconfigure any personalized settings after upgrade

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in D3600 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA3.0 h
25.0 hours of engineering $4,400
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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-2019-20730 in production — separate from our analysis above.

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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