CVE-2023-3487: Silabs Gecko Bootloader

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

An integer overflow in Silicon Labs Gecko Bootloader version 4.3.1 and earlier allows unbounded memory access when reading from or writing to storage slots.

Affected products

• Silabs Gecko Bootloader: up to and including 4.3.1

Published 2023-10-20. Last modified 2026-06-17.