CVE-2021-3322

MEDIUM

Zephyr 2.4.0-2.4.9 - NULL Pointer Dereference in IEEE 802.15.4 Fragment Reassembly

Title source: llm
STIX 2.1

Description

Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr. Zephyr versions >= >=2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3

References (1)

Core 1
Core References
Exploit, Patch, Third Party Advisory x_refsource_misc
http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3

Scores

CVSS v3 6.5
EPSS 0.0053
EPSS Percentile 40.6%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (1)
zephyrproject/zephyr 2.4.0 - 2.5.0
Published Oct 12, 2021
Tracked Since Feb 18, 2026