CVE-2023-4259: Zephyrproject Zephyr

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Two potential buffer overflow vulnerabilities at the following locations in the Zephyr eS-WiFi driver source code.

Affected products

• Zephyrproject Zephyr: up to and including 3.4.0

Published 2023-09-26. Last modified 2026-06-17.