CVE-2021-3966

CRITICAL

Zephyr < 3.0.0 - Heap Buffer Overflow

Title source: rule
STIX 2.1

Description

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

References (1)

Core 1

Scores

CVSS v3 9.6
EPSS 0.0012
EPSS Percentile 29.8%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-120 CWE-122
Status published
Products (1)
zephyrproject/zephyr < 3.0.0
Published Jan 11, 2023
Tracked Since Feb 18, 2026