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CVE-2025-39864

HIGH CVSS: 8.8 Published: 2025-09-19 Modified: 2026-07-30

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: fix use-after-free in cmp_bss() Following bss_free() quirk introduced in commit 776b3580178f ("cfg80211: track hidden SSID networks properly"), adjust cfg80211_update_known_bss() to free the last beacon frame elements only if they're not shared via the corresponding 'hidden_beacon_bss' pointer.

Affected Platforms

Linux Linux KernelDebian Debian Linux

Weakness Type

CWE-416

References