D7800 FirmwareOperating system · Netgear

CVE-2017-18705

HIGH · 8.8 CVSS v3.1 Published 2020-04-24
Fix available
A fix is available. Upgrade to 1.0.0.48 / 1.0.0.118 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 incorrect configuration of security settings. This affects D7800 before 1.0.1.28, R6100 before 1.0.1.20, R7500 before 1.0.0.118, R7500v2 before 1.0.3.20, R7800 before 1.0.2.40, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.88, WNDR4300 before 1.0.2.90, WNDR4300v2 before 1.0.0.48, WNDR4500v3 before 1.0.0.48, and WNR2000v5 before 1.0.0.62.

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

This vulnerability involves incorrect configuration of security settings on multiple NETGEAR router models, including D7800, R6100, R7500, R7500v2, R7800, R9000, WNDR3700v4, WNDR4300, WNDR4300v2, WNDR4500v3, and WNR2000v5. The improper security settings configuration could allow unauthorized access or bypass of security controls, resulting in a HIGH severity vulnerability with CVSS score of 8.8.

MitigationUpdate the router firmware to the fixed versions specified: D7800 to 1.0.1.28, R6100 to 1.0.1.20, R7500 to 1.0.0.118, R7500v2 to 1.0.3.20, R7800 to 1.0.2.40, R9000 to 1.0.2.52, WNDR3700v4 to 1.0.2.88, WNDR4300 to 1.0.2.90, WNDR4300v2 to 1.0.0.48, WNDR4500v3 to 1.0.0.48, and WNR2000v5 to 1.0.0.62.

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
D7800 FirmwareOperating system
Affected:< 1.0.1.28
R6100 FirmwareOperating system
Affected:< 1.0.1.20
R7500 FirmwareOperating system
Affected:< 1.0.0.118< 1.0.3.20
R7800 FirmwareOperating system
Affected:< 1.0.2.40
R9000 FirmwareOperating system
Affected:< 1.0.2.52
Wndr3700 FirmwareOperating system
Affected:< 1.0.2.88
Wndr4300 FirmwareOperating system
Affected:< 1.0.2.90< 1.0.0.48
Wndr4500 FirmwareOperating system
Affected:< 1.0.0.48

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 router model
    Locate the model number on the router device label or check the router web interface (typically at 192.168.1.1) under the Administration or Status section
    Affected if The model is one of: D7800, R6100, R7500, R7500v2, R7800, R9000, WNDR3700v4, WNDR4300, WNDR4300v2, WNDR4500v3, or WNR2000v5
  2. Check the installed firmware version
    Log into the router web interface and navigate to Administration > Router Update or Status page to view the current firmware version. Alternatively, access the router via CLI and run 'nvram get firmware_version' or check the firmware file name displayed in the interface
    Affected if The displayed firmware version cannot be verified or is lower than the fixed version thresholds
  3. Compare against affected version ranges
    Reference the specific affected version ranges: D7800 < 1.0.1.28, R6100 < 1.0.1.20, R7500 < 1.0.0.118 (or < 1.0.3.20 for v2), R7800 < 1.0.2.40, R9000 < 1.0.2.52, WNDR3700v4 < 1.0.2.88, WNDR4300 < 1.0.2.90 (or < 1.0.0.48 for v2), WNDR4500v3 < 1.0.0.48, WNR2000v5 < 1.0.0.62
    Affected if The installed firmware version falls below the specified threshold for that model
  4. Verify remote management exposure
    Check if the router's web management interface is accessible from the WAN (internet) side by attempting to access the router's external IP on ports 80/443, or review the router's Remote Management settings under Advanced > Administration > Remote Management
    Affected if Remote management is enabled and the router firmware is below the fixed version, increasing exposure to exploitation

The router is affected if it is one of the listed models AND its current firmware version is below the fixed version 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 1.0.0.48 / 1.0.0.118 / 1.0.1.20 or later
Fixed in 1.0.0.481.0.0.1181.0.1.20
Interim mitigation

Update the router firmware to the fixed versions specified: D7800 to 1.0.1.28, R6100 to 1.0.1.20, R7500 to 1.0.0.118, R7500v2 to 1.0.3.20, R7800 to 1.0.2.40, R9000 to 1.0.2.52, WNDR3700v4 to 1.0.2.88, WNDR4300 to 1.0.2.90, WNDR4300v2 to 1.0.0.48, WNDR4500v3 to 1.0.0.48, and WNR2000v5 to 1.0.0.62.

Fix this in D7800 Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,420
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,272.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2017-18705 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2017-18705 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

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