CVE-2023-4424: Zephyrproject Zephyr

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

An malicious BLE device can cause buffer overflow by sending malformed advertising packet BLE device using Zephyr OS, leading to DoS or potential RCE on the victim BLE device.

Affected products

• Zephyrproject Zephyr: up to and including 3.4.0

Published 2023-11-21. Last modified 2026-06-17.