CVE-2026-26048

Unknown · Wi-Fi Router

A Wi-Fi router is vulnerable to de-authentication attacks because it does not support Management Frame Protection (MFP), allowing attackers to disconnect users.

Executive summary

The absence of Management Frame Protection allows unauthenticated attackers to launch denial-of-service attacks by forcing wireless clients to disconnect from the network.

Vulnerability

The router fails to implement protected management frames (IEEE 802.11w). This allows an unauthenticated attacker within radio range to forge de-authentication and disassociation frames to disrupt wireless connectivity.

Business impact

This vulnerability allows for persistent Denial of Service (DoS) against wireless infrastructure, leading to lost productivity and disruption of business operations. With a CVSS score of 7.5, the flaw is easily exploitable and can be used as a precursor to more advanced attacks, such as "Evil Twin" phishing.

Remediation

Immediate Action: Check for a firmware update that enables Management Frame Protection (MFP/802.11w) and enable it in the router's security settings.

Proactive Monitoring: Use wireless intrusion detection systems (WIDS) to alert on high frequencies of de-authentication frames in the environment.

Compensating Controls: Shift critical business operations to wired connections where possible to mitigate the risk of wireless disruption.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Wireless availability is critical for modern business. Administrators should verify that all deployed wireless access points support and require Management Frame Protection to defend against these common and disruptive attacks.