CVE-2026-0407
Published: 13 January 2026
Summary
CVE-2026-0407 is a high-severity Improper Authentication (CWE-287) vulnerability in Netgear Ex5000 Firmware. Its CVSS base score is 8.0 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique External Remote Services (T1133); ranked at the 22.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-14 (Permitted Actions Without Identification or Authentication) and AC-3 (Access Enforcement).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly identifies and restricts sensitive actions like admin panel access that can be performed without identification or authentication, mitigating the bypass vulnerability.
Enforces approved access control policies to prevent unauthorized logical access to the admin panel despite authentication bypass attempts.
Requires unique identification and authentication for non-organizational users accessing system resources such as the admin panel, addressing the insufficient authentication issue.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Insufficient authentication bypass directly enables unauthorized access to the device's remote admin/management interface from an adjacent network position.
NVD Description
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.
Deeper analysisAI
CVE-2026-0407 is an insufficient authentication vulnerability (CWE-287) in NETGEAR WiFi range extenders, including models such as EX2800, EX3110, EX5000, and EX6110. Published on 2026-01-13, the issue enables attackers to bypass the authentication process and access the admin panel. It carries a CVSS v3.1 base score of 8.0 (AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating high severity due to its potential for significant impact.
A network-adjacent attacker with WiFi authentication or a physical Ethernet port connection can exploit this vulnerability. The attack requires low complexity and low privileges, with no user interaction needed. Exploitation allows high confidentiality, integrity, and availability impacts, potentially granting unauthorized administrative access to the device.
The NETGEAR Security Advisory provides details on mitigation and patches: https://kb.netgear.com/000070442/January-2026-NETGEAR-Security-Advisory. Additional product support pages are available for EX2800 (https://www.netgear.com/support/product/ex2800), EX3110 (https://www.netgear.com/support/product/ex3110), EX5000 (https://www.netgear.com/support/product/ex5000), and EX6110 (https://www.netgear.com/support/product/ex6110).
Details
- CWE(s)