Is CVE-2023-4041 actively exploited?

No active exploitation of CVE-2023-4041 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-4041 be exploited remotely?

Yes. CVE-2023-4041 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-4041?

CVE-2023-4041 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-4041

CWE-120Published: August 23, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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.

NVD Source

Risk Analysis

The Silicon Labs Gecko Bootloader is vulnerable to a buffer overflow and improper integrity checks during firmware updates. This critical flaw allows unauthenticated remote attackers to inject code or bypass authentication, warranting immediate attention due to the CVSS score of 9.8.

There is no known public exploit for this vulnerability, and it is not currently listed in the CISA KEV catalog. The vulnerability is remotely exploitable with low attack complexity.

Recommended Action

Users should apply the latest firmware updates provided by Silicon Labs for the Gecko Bootloader. Ensure that only signed and verified firmware images are used during the update process.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-4041 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.