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PatchSiren cyber security CVE debrief

CVE-2026-9210 NETGEAR CVE debrief

CVE-2026-9210 is a medium severity vulnerability (CVSS Score: 4.9) that affects certain NETGEAR models. The vulnerability is caused by insufficient input validation, allowing authenticated administrators connected to the local network to make unauthorized modifications to router software and functionality.

Vendor
NETGEAR
Product
EX3700
CVSS
MEDIUM 4.9
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-18
Advisory published
2026-06-09
Advisory updated
2026-06-18

Who should care

Administrators and users of affected NETGEAR models should be aware of this vulnerability and take necessary actions to mitigate it.

Technical summary

The vulnerability has a CVSS vector of CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:D/RE:L/U:Amber. It is classified under CWE-20.

Defensive priority

Medium

Recommended defensive actions

  • Apply patches or updates provided by NETGEAR as soon as possible.
  • Restrict access to the router's administration interface to trusted users only.
  • Monitor router logs for suspicious activity.

Evidence notes

The CVE record and NVD detail pages provide further information about this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-9210 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-9210

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-9210 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-9210

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source reference

    Unverified legacy reference

    URL: https://kb.netgear.com/000070811/June-2026-NETGEAR-Security-Advisory

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  • Source reference

    Unverified legacy reference

    URL: https://www.netgear.com/support/product/ex3700/

    a2826606-91e7-4eb6-899e-8484bd4575d5

  • Source reference

    Unverified legacy reference

    URL: https://www.netgear.com/support/product/ex3800/

    a2826606-91e7-4eb6-899e-8484bd4575d5

  • Source reference

    Unverified legacy reference

    URL: https://www.netgear.com/support/product/ex6120/

    a2826606-91e7-4eb6-899e-8484bd4575d5

  • Source reference

    Unverified legacy reference

    URL: https://www.netgear.com/support/product/ex6130/

    a2826606-91e7-4eb6-899e-8484bd4575d5

  • Source reference

    Unverified legacy reference

    URL: https://www.netgear.com/support/product/mr60/

    a2826606-91e7-4eb6-899e-8484bd4575d5

  • Source reference

    Unverified legacy reference

    URL: https://www.netgear.com/support/product/mr70/

    a2826606-91e7-4eb6-899e-8484bd4575d5

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.