CVE-2021-3966

8.8 highEPSS 0.5%

High (8.8) in zephyrproject zephyr. EPSS 0.5% chance of exploitation in the next 30 days.

usb device bluetooth class includes a buffer overflow related to implementation of net_buf_add_mem.

Severity

8.8 high

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
CWEs: CWE-120, CWE-122
Published: 2023-01-11
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19