CVE-2021-3320

MEDIUM

Zephyr < 2.4.0 - Type Confusion

Title source: rule
STIX 2.1

Description

Type Confusion in 802154 ACK Frames Handling. Zephyr versions >= v2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-27r3-rxch-2hm7

References (1)

Core 1
Core References

Scores

CVSS v3 5.9
EPSS 0.0034
EPSS Percentile 56.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-843 CWE-476
Status published
Products (1)
zephyrproject/zephyr 2.0.0 - 2.4.0
Published May 25, 2021
Tracked Since Feb 18, 2026