CVE-2021-3861: Zephyrproject Zephyr

Medium severity, CVSS 6.8. EPSS: 0.5% chance of exploitation in the next 30 days.

The RNDIS USB device class includes a buffer overflow vulnerability. Zephyr versions >= v2.6.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hvfp-w4h8-gxvj

Affected products

• Zephyrproject Zephyr: from 2.6.0, up to and including 2.7.1

Published 2022-02-07. Last modified 2026-06-17.