Ex3700 FirmwareOperating system · Netgear

CVE-2017-18772

HIGH · 8.8 CVSS v3.1 Published 2020-04-22
Fix available
A fix is available. Upgrade to 1.0.0.16 / 1.0.0.32 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 authentication bypass. This affects EX3700 before 1.0.0.64, EX3800 before 1.0.0.64, EX6120 before 1.0.0.32, EX6130 before 1.0.0.16, R6300v2 before 1.0.4.12, R6700 before 1.0.1.26, R6900 before 1.0.1.22, R7000 before 1.0.9.6, R7300DST before 1.0.0.52, R7900 before 1.0.1.12, R8000 before 1.0.3.24, R8500 before 1.0.2.74, and WNR2000v2 before 1.2.0.8.

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

Authentication bypass vulnerability in multiple NETGEAR wireless router and range extender models allows unauthenticated attackers to gain administrative access to affected devices by exploiting a flaw in the authentication mechanism.

MitigationUpdate affected NETGEAR devices to the specified firmware versions (EX3700/EX3800: 1.0.0.64, EX6120: 1.0.0.32, EX6130: 1.0.0.16, R6300v2: 1.0.4.12, R6700: 1.0.1.26, R6900: 1.0.1.22, R7000: 1.0.9.6, R7300DST: 1.0.0.52, R7900: 1.0.1.12, R8000: 1.0.3.24, R8500: 1.0.2.74, WNR2000v2: 1.2.0.8) or later. If firmware updates are unavailable, disable remote administration and restrict network access.

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
Ex3700 FirmwareOperating system
Affected:< 1.0.0.64
Ex3800 FirmwareOperating system
Affected:< 1.0.0.64
Ex6120 FirmwareOperating system
Affected:< 1.0.0.32
Ex6130 FirmwareOperating system
Affected:< 1.0.0.16
R6300 FirmwareOperating system
Affected:< 1.0.4.12
R6700 FirmwareOperating system
Affected:< 1.0.1.26
R6900 FirmwareOperating system
Affected:< 1.0.1.22
R7000 FirmwareOperating system
Affected:< 1.0.9.6

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 NETGEAR device model
    Log into the router web interface (typically 192.168.1.1) and navigate to the Administration or Router Status page to locate the model number, or check the physical device label
    Affected if The device model is one of: Ex3700, Ex3800, Ex6120, Ex6130, R6300, R6700, R6900, or R7000
  2. Determine the current firmware version
    In the router web interface, go to Administration > Firmware Update or Router Status page and locate the firmware version number displayed
    Affected if The firmware version is lower than the affected threshold for your model (Ex3700/Ex3800: < 1.0.0.64, Ex6120: < 1.0.0.32, Ex6130: < 1.0.0.16, R6300: < 1.0.4.12, R6700: < 1.0.1.26, R6900: < 1.0.1.22, R7000: < 1.0.9.6)
  3. Verify if remote administration is enabled
    In the router web interface, go to Advanced > Remote Management or Administration > Remote Management and check if the Enable Remote Management option is checked
    Affected if Remote management is enabled and the device is exposed to network access from outside the local network

You are affected if you own one of the listed models and your firmware version is below the specified threshold for that model.

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 1.0.0.16 / 1.0.0.32 / 1.0.0.64 or later
Fixed in 1.0.0.161.0.0.321.0.0.64
Interim mitigation

Update affected NETGEAR devices to the specified firmware versions (EX3700/EX3800: 1.0.0.64, EX6120: 1.0.0.32, EX6130: 1.0.0.16, R6300v2: 1.0.4.12, R6700: 1.0.1.26, R6900: 1.0.1.22, R7000: 1.0.9.6, R7300DST: 1.0.0.52, R7900: 1.0.1.12, R8000: 1.0.3.24, R8500: 1.0.2.74, WNR2000v2: 1.2.0.8) or later. If firmware updates are unavailable, disable remote administration and restrict network access.

Fix this in Ex3700 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA3.0 h
21.0 hours of engineering $3,680
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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-2017-18772 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