# CVE-2023-4041

## Summary

- **CVE ID:** CVE-2023-4041
- **Severity:** CRITICAL
- **CVSS Score:** 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-120, CWE-787, CWE-913
- **Published:** Aug 23, 2023
- **Last Modified:** Mar 13, 2026

## Description

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow'), Out-of-bounds Write, Download of Code Without Integrity Check vulnerability in Silicon Labs Gecko Bootloader on ARM (Firmware Update File Parser modules) allows Code Injection, Authentication Bypass.This issue affects "Standalone" and "Application" versions of Gecko Bootloader.

## Affected Products

- Silicon Labs — Gecko Bootloader (0)
- Silicon Labs — Gecko Bootloader (4.3.2)
- Silicon Labs — Gecko Bootloader (4.2.4)

## References

- [CNA](https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/0698Y00000XT8GsQAL?operationContext=S1)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.03%
- **EPSS Percentile:** 10.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._