CVE-2021-38206: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

The mac80211 subsystem in the Linux kernel before 5.12.13, when a device supporting only 5 GHz is used, allows attackers to cause a denial of service (NULL pointer dereference in the radiotap parser) by injecting a frame with 802.11a rates.

Affected products

• Linux Linux Kernel: before 5.12.13 (fixed in 5.12.13)

Published 2021-08-08. Last modified 2026-10-08.