CVE-2021-3320

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CVSS 3.1

7.5 high

EPSS

<1%p56

Published

May 25, 2021 (May 25, 2021)

Modified

Jun 17, 2026

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

Vendors: zephyrproject
Products: zephyr
Weakness: CWE-476, CWE-843
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.8%)

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