kernel: wifi: mac80211: Discard Beacon frames to non-broadcast address

A beacon protection bypass vulnerability was found in the Linux kernel's mac80211 WiFi stack. According to IEEE 802.11-2020, beacon frames must be sent to the broadcast address, but mac80211 incorrectly accepts unicast beacon frames with the Protected Frame bit set to 1. This allows attackers to...

CVE-2025-71127

The CVE-2025-71127 issue concerns the Linux kernel mac80211 handling of Beacon frames. A unicast Beacon frame could bypass beacon protection when the Protected Frame bit is 1, potentially allowing targeted actions on a specific STA. The documented fix is a policy change to drop Beacon frames addr...

CVE-2025-71127

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Discard Beacon frames to non-broadcast address Beacon frames are required to be sent to the broadcast address, see IEEE Std 802.11-2020, 11.1.3.1 "The Address 1 field of the Beacon .. frame shall be set to the...

Linux Distros Unpatched Vulnerability : CVE-2025-71127

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Discard Beacon frames to non-broadcast address Beacon frames are required to...

PT-2026-2888

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the mac80211 component related to the handling of Beacon frames. Specifically, the system does not properly discard Beacon frames sent to a...