Skip to main content

Ex2800 Firmware CVE-2026-0407

HIGH
Improper Authentication (CWE-287)
2026-01-13 a2826606-91e7-4eb6-899e-8484bd4575d5
8.0
CVSS 3.1 · NVD
View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Connect to WiFi or Ethernet port
  2. Exploit
    Send unauthenticated request to admin panel
  3. Execution
    Bypass authentication check
  4. Impact
    Access administrative functions

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication mechanism validation
MITRE ATT&CK

2 techniques across 2 tactics: Defense Evasion, Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Network adjacency required — attacker must be WiFi-connected to target NETGEAR range extender or have physical Ethernet port access. Authentication bypass affects admin panel interface on default or standard configurations.

Impact

CVSS 8.0 (HIGH). Attack vector: Adjacent Network. Complexity: Low. Privileges required: Low. User interaction: None. Exploitation requires authentication. Exploitable via remote/network.

Exploit ScenarioDerived

A remote attacker (requires authentication) could exploit this vulnerability to compromise the affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.1% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Mar 12, 2026

NETGEAR WiFi extenders (Ex3110, Ex6110, Ex5000, Ex2800) contain an authentication bypass vulnerability that allows network-adjacent attackers with WiFi access or physical Ethernet connectivity to gain unauthorized admin panel access. An attacker can exploit insufficient authentication validation to fully compromise the device's confidentiality, integrity, and availability. A patch is available for affected firmware versions.

Earlier versions of this analysis (1)
v1 Mar 12, 2026 - 21:54 CVSS 8.0

An insufficient authentication vulnerability in NETGEAR WiFi range extenders allows a network adjacent attacker with WiFi authentication or a physical Ethernet port connection to bypass the authentication process and access the admin panel. [CVSS 8.0 HIGH]

RemediationAI

A vendor patch is available — apply it immediately.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Classified as CWE-287 (Improper Authentication). Affects Ex5000 Firmware. An insufficient authentication vulnerability in NETGEAR WiFi range extenders allows a network adjacent attacker with WiFi authentication or a physical Ethernet port connection to bypass the authentication process and access the admin panel.

Know when Ex2800 Firmware gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 8.0 HIGH
AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Patch released
Feb 20, 2026 - 19:40 nvd
Patch available
CVE Published
Jan 13, 2026 - 16:16 nvd
HIGH 8.0

DescriptionCVE.org

An insufficient authentication vulnerability in NETGEAR WiFi range extenders allows a network adjacent attacker with WiFi authentication or a physical Ethernet port connection to bypass the authentication process and access the admin panel.

Executive ViewAI

Why It Matters

Organizations using An insufficient authentication vulnerability in NETGEAR WiFi range extenders face notable risk from CVE-2026-0407, a improper authentication vulnerability rated CVSS 8.0. Attackers could bypass security controls to gain unauthorized access to protected resources and sensitive data. A patch is available and should be applied as part of regular vulnerability management.

Business Impact: High
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls; (2) Enable MFA where possible; (3) Monitor authentication logs for anomalous access.

Threat Intelligence Overview

EPSS Score
0.1%
Top 78% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Controlled
Automatable· derived
No
Human Impact
High

Priority Score

40
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +40
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Affected Products (CPE)CVE.org

cpe:2.3:o:netgear:ex5000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex3110_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex6110_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ex2800_firmware:*:*:*:*:*:*:*:*

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy