PT-2023-27441 · Silicon · Gecko Bootloader

CVE-2023-4041 · Published 2023-07-20 · Updated 2025-06-29

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Silicon Labs Gecko Bootloader (affected versions not specified)

Description The issue is related to a Buffer Copy without Checking Size of Input, also known as a 'Classic Buffer Overflow', and Out-of-bounds Write, which allows Code Injection and Authentication Bypass. This is due to the Download of Code Without Integrity Check vulnerability in the Firmware Update File Parser modules on ARM. The problem affects both "Standalone" and "Application" versions of the Gecko Bootloader.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-913

CWE-120

CWE-494

Related Identifiers

BDU:2025-05736

CVE-2023-4041

Affected Products

Gecko Bootloader

References · 18

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4041.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-4041 · Security Note
• https://bdu.fstec.ru/vul/2025-05736 · Security Note
• https://osv.dev/vulnerability/CVE-2023-4041 · Vendor Advisory
• https://github.com/SiliconLabs/gecko_sdk/releases · Note
• https://t.me/cvenotify/57535 · Telegram Post
• https://t.me/secharvester/18631 · Telegram Post
• https://t.me/cvenotify/57140 · Telegram Post
• https://github.com/advisories/GHSA-hvfc-3xxp-p6hw · Note
• https://community.silabs.com/s/question/0D5Vm000007c4bcKAA/security-advisory-a00000476-cve20234041?language=en_US · Note
• https://twitter.com/syedaquib77/status/1922689885783138456 · Twitter Post
• https://blog.quarkslab.com/breaking-secure-boot-on-the-silicon-labs-gecko-platform.html · Note
• https://t.me/cibsecurity/69045 · Telegram Post
• https://t.me/cvenotify/96005 · Telegram Post
• https://t.me/true_secator/7040 · Telegram Post