Buffer overflow in Silabs Gecko Bootloader
CVE-2023-4041
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.
Vulnerability class: Buffer Overflow
EPSS: 0.003 (25.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Silabs Gecko_bootloader
- Silicon Labs Gecko Bootloader — versions 0, 4.3.2, 4.2.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- product-security@silabs.com (Permissions Required)
Frequently asked questions
- What is CVE-2023-4041?
- CVE-2023-4041 is a critical-severity vulnerability in Silabs Gecko Bootloader, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2023-08-23.
- How severe is CVE-2023-4041?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-4041 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.