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CVE Record

CVE-2017-18731: Certain NETGEAR devices are affected by incorrect configuration of security settings.

Certain NETGEAR devices are affected by incorrect configuration of security settings. This affects R6100 before 1.0.1.16, R7500 before 1.0.0.112, R7500v2 before 1.0.3.20, R7800 before 1.0.2.36, and WNR2000v5 before 1.0.0.58.

MediumCVSS 6.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This CVE affects several older NETGEAR router models with a security misconfiguration. The provided sources rate it medium severity, with low confidentiality, integrity, and availability impact. Business urgency is highest where these routers remain in use on corporate, branch, or guest networks.

Executive priority

Treat this as a cleanup and legacy-router risk item, not an emergency based on the supplied evidence. Prioritize remediation where affected routers support business networks, guest wireless, or shared local access.

Technical view

CVE-2017-18731 describes incorrect security settings on NETGEAR R6100, R7500, R7500v2, R7800, and WNR2000v5 before specified firmware versions. CVSS 3.0 score is 6.3. The vector indicates adjacent-network access, no privileges, no user interaction, and low impact across confidentiality, integrity, and availability.

Likely exposure

Exposure is limited to environments still running the named NETGEAR models below the fixed firmware versions. The CVSS vector indicates an attacker must be on an adjacent network, so wireless, guest, branch, or shared local networks are the practical concern.

Exploitation context

The source bundle does not show CISA KEV listing or any cited evidence of active exploitation. The exact misconfiguration details are not included, so validation should focus on model and firmware exposure rather than exploit reproduction.

Researcher notes

The provided data identifies affected models and firmware thresholds but does not describe the specific misconfiguration or CWE. Avoid assuming internet-reachable exploitation. Research should stay anchored to firmware inventory, adjacent-network exposure, and vendor advisory details.

Mitigation direction

  • Inventory for NETGEAR R6100, R7500, R7500v2, R7800, and WNR2000v5 devices.
  • Upgrade R6100 to firmware 1.0.1.16 or later.
  • Upgrade R7500 to firmware 1.0.0.112 or later.
  • Upgrade R7500v2 to firmware 1.0.3.20 or later.
  • Upgrade R7800 to firmware 1.0.2.36 or later.
  • Upgrade WNR2000v5 to firmware 1.0.0.58 or later.

Validation and detection

  • Confirm whether any named NETGEAR models are deployed or still connected.
  • Record each device model, hardware revision, and firmware version.
  • Compare firmware versions against the fixed versions listed in the CVE description.
  • Check NETGEAR advisory guidance for any model-specific update notes.
  • Document retired, replaced, or upgraded devices for audit closure.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2017-18731 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.3 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AC:L/AV:A/A:L/C:L/I:L/PR:N/S:U/UI:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.3CVSS 3.0MediumCVSS:3.0/AC:L/AV:A/A:L/C:L/I:L/PR:N/S:U/UI:N2.83.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.3Medium
CVSS 3.0 vector shape for CVE-2017-18731Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AC:L/AV:A/A:L/C:L/I:L/PR:N/S:U/UI:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.