Security readout for executives and security teams
Plain-English summary
CVE-2026-0407 lets someone already near or connected to the local network bypass authentication and reach the admin panel on certain NETGEAR WiFi range extenders. This is not described as internet-exploitable. Business risk is highest where extender admin access could let an attacker change network settings, weaken security, or disrupt connectivity.
Executive priority
Treat as a timely network-edge maintenance issue, not an emergency based on current evidence. Prioritize sites where visitors, tenants, contractors, or shared WiFi users can reach these extenders, because successful bypass may allow administrative control of network equipment.
Technical view
The CVE describes CWE-287 insufficient authentication affecting NETGEAR EX5000, EX3110, EX6110, and EX2800 range extenders. Attack vector is adjacent network, requiring WiFi authentication or physical Ethernet access. CVSS v4.0 is 6.1 with high impact to vulnerable system confidentiality, integrity, and availability. Public sources do not provide exploit details.
Likely exposure
Exposure is limited to environments using the named NETGEAR extender models where an attacker can join the WiFi network or access an Ethernet port. Internet-facing exposure is not indicated in the provided sources.
Exploitation context
The CVE record marks exploitation as unreported, and it is not listed as KEV in the provided bundle. The realistic scenario is a local insider, compromised WiFi user, visitor, or someone with physical network access targeting extender administration.
Researcher notes
The provided CVE data identifies affected models but does not include specific vulnerable firmware ranges beyond version metadata shown as “0.” Use NETGEAR’s advisory and product pages as authoritative for patch applicability. Avoid assuming exploitability from the internet; the stated vector is adjacent network or physical Ethernet access.
Mitigation direction
- Identify whether EX5000, EX3110, EX6110, or EX2800 devices are deployed.
- Review NETGEAR’s January 2026 advisory for affected firmware and remediation guidance.
- Check each NETGEAR product support page for applicable firmware updates.
- Restrict physical access to extender Ethernet ports.
- Limit WiFi access to trusted users until remediation is confirmed.
Validation and detection
- Inventory NETGEAR range extenders by model and firmware version.
- Compare installed firmware with NETGEAR advisory and support page guidance.
- Confirm administrative interfaces are not reachable from untrusted network segments.
- Review device logs for unexpected admin-panel access or configuration changes.
- Document remediation status for each identified extender.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-0407 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.1 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
6.1MediumVector: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber
Source materials
- CVE List V5 sourceCVE List V5
- https://www.netgear.com/support/product/ex5000CVE reference · product, patch
- https://www.netgear.com/support/product/ex3110CVE reference · product, patch
- https://www.netgear.com/support/product/ex6110CVE reference · product, patch
- https://www.netgear.com/support/product/ex2800CVE reference · product, patch
- https://kb.netgear.com/000070442/January-2026-NETGEAR-Security-AdvisoryCVE reference · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.