CVE-2023-53209: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211_hwsim: Fix possible NULL dereference In a call to mac80211_hwsim_select_tx_link() the sta pointer might be NULL, thus need to check that it is not NULL before accessing it.

Affected products

• Linux Linux Kernel: before 6.1.42 (fixed in 6.1.42); from 6.2, before 6.4.7 (fixed in 6.4.7)

Published 2025-09-15. Last modified 2026-06-17.