CVE-2021-3625

PoC —

CVSS 3.1

9.8 critical

EPSS

2%p82

Published

Oct 5, 2021 (Oct 5, 2021)

Modified

Jun 17, 2026

Description

Buffer overflow in Zephyr USB DFU DNLOAD. Zephyr versions >= v2.5.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-c3gr-hgvr-f363

Vendors: zephyrproject
Products: zephyr
Weakness: CWE-122, CWE-787
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (2.3%)

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