CVE-2021-47347: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.8% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: wl1251: Fix possible buffer overflow in wl1251_cmd_scan Function wl1251_cmd_scan calls memcpy without checking the length. Harden by checking the length is within the maximum allowed size.

Affected products

• Linux Linux Kernel: before 4.4.276 (fixed in 4.4.276); from 4.5, before 4.9.276 (fixed in 4.9.276); from 4.10, before 4.14.240 (fixed in 4.14.240); from 4.15, before 4.19.198 (fixed in 4.19.198); from 4.20, before 5.4.133 (fixed in 5.4.133); from 5.5, before 5.10.51 (fixed in 5.10.51); …

Published 2024-05-21. Last modified 2026-08-04.