CVE-2026-10206

D-Link · DI-8400

A security vulnerability has been identified in the D-Link DI-8400 router, potentially impacting network security configurations.

Executive summary

A high-severity vulnerability in the D-Link DI-8400 router exposes connected networks to potential unauthorized access and administrative control.

Vulnerability

The vulnerability resides within the D-Link DI-8400 hardware, affecting firmware versions up to 16. It may allow an attacker to bypass security controls or execute unauthorized commands on the device.

Business impact

With a CVSS score of 8.8, this vulnerability represents a severe threat to network infrastructure. Compromise of the router could allow attackers to intercept traffic, redirect users, or gain persistence within the internal network, leading to catastrophic data breaches.

Remediation

Immediate Action: Update the DI-8400 router firmware to the latest version provided by the vendor.

Proactive Monitoring: Monitor network traffic for anomalous outbound connections or unauthorized changes to router configuration settings.

Compensating Controls: Restrict management interface access to trusted internal IP addresses and disable remote administration features until the device is patched.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Network administrators must prioritize patching this hardware vulnerability. Given the role of the router as a gateway, leaving this device unpatched significantly increases the attack surface of the entire organization.