CVE-2026-0405 in RBE970
Summary
by MITRE • 01/13/2026
An authentication bypass vulnerability in NETGEAR Orbi devices allows users connected to the local network to access the router web interface as an admin.
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Analysis
by VulDB Data Team • 02/12/2026
The vulnerability identified as CVE-2026-0405 represents a critical authentication bypass flaw within NETGEAR Orbi wireless router systems that fundamentally undermines the security posture of affected networks. This issue stems from improper access control mechanisms that fail to adequately validate user credentials before granting administrative privileges. The flaw specifically affects devices running firmware versions that contain a weakness in the web interface authentication routine, allowing any local network user to escalate their privileges without proper authorization. The vulnerability is particularly concerning because it operates entirely within the local network perimeter, eliminating the need for external exploitation vectors or sophisticated attack techniques. This authentication bypass enables malicious actors who have gained access to the local network to immediately assume administrative control over the router configuration, potentially compromising the entire network infrastructure.
The technical root cause of this vulnerability lies in the implementation of the web interface authentication subsystem where the system fails to properly enforce privilege levels during session management. According to CWE classification, this vulnerability maps to CWE-287 which addresses improper authentication issues, specifically focusing on the failure to properly validate credentials or maintain proper access controls. The flaw manifests when local network users exploit a logic error in the authentication flow that allows them to bypass the standard administrative login process. This occurs because the system does not adequately verify that the requesting user has the appropriate administrative permissions before granting access to the administrative interface. The vulnerability is categorized under the MITRE ATT&CK framework as part of the privilege escalation category, specifically targeting the credential access and defense evasion domains where attackers can maintain persistent access to network infrastructure.
The operational impact of CVE-2026-0405 extends far beyond simple unauthorized access, as it provides attackers with complete administrative control over the affected routers. Once exploited, malicious actors can modify network configurations, implement man-in-the-middle attacks, redirect traffic, disable security features, and potentially establish persistent backdoors within the network. The local network access requirement means that attackers do not need to overcome external network defenses or perform complex reconnaissance, making this vulnerability particularly dangerous in environments where network segmentation is not properly implemented. Organizations using affected NETGEAR Orbi devices face significant risks including data exfiltration, network disruption, and potential lateral movement within their infrastructure. The vulnerability also creates opportunities for attackers to establish command and control channels that can be used for further attacks against connected devices and systems, effectively turning the compromised router into a strategic foothold for broader network infiltration.
Mitigation strategies for this vulnerability should prioritize immediate firmware updates from NETGEAR to address the authentication bypass flaw. Network administrators should also implement network segmentation to limit local network access to critical infrastructure, deploy intrusion detection systems to monitor for unauthorized administrative access attempts, and conduct comprehensive network audits to identify potentially compromised devices. The implementation of network access control lists and firewall rules can help restrict access to administrative interfaces from unauthorized network segments. Additionally, organizations should consider disabling unnecessary administrative services and implementing multi-factor authentication mechanisms where possible. Security monitoring should include regular checks for unauthorized configuration changes and anomalous network behavior that might indicate exploitation attempts. According to industry best practices and security frameworks, organizations should also maintain up-to-date vulnerability management processes that include regular scanning for known vulnerabilities and prompt remediation of identified security flaws. The vulnerability highlights the critical importance of maintaining current firmware versions and implementing robust network security controls to prevent unauthorized access to critical infrastructure components.