CVE-2020-10019: Zephyrproject Zephyr

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

USB DFU has a potential buffer overflow where the requested length (wLength) is not checked against the buffer size. This could be used by a malicious USB host to exploit the buffer overflow. See NCC-ZEP-002 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.

Affected products

• Zephyrproject Zephyr: before 1.14.2 (fixed in 1.14.2); from 2.0.0, up to and including 2.1.0

Published 2020-05-11. Last modified 2026-06-17.