---
id: CVE-2025-4321
title: >-
  In a Bluetooth device, using RS9116-WiseConnect SDK experiences a Denial of
  Service, if it receives malformed L2CAP packets, only hard reset will bring
  the device to normal operation
summary: >-
  In a Bluetooth device, using RS9116-WiseConnect SDK experiences a Denial of
  Service, if it receives malformed L2CAP packets, only hard reset will bring
  the device to normal operation
severity: none
cwe:
  - CWE-240
  - CWE-617
published: '2025-11-17'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T21:10:00.200'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-4321'
references:
  - url: 'https://community.silabs.com/068Vm00000YV9DL'
    label: product-security@silabs.com
tags:
  - nvd
  - exploit-available
epss: 0.00176
epssPercentile: 0.06458
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/Salman-Sec/Patch-management-'
  checkedAt: '2026-10-07T21:54:50.426Z'
exploitAvailable: true
ingestedAt: '2026-10-07T21:54:15.059Z'
---

## Overview

In a Bluetooth device, using RS9116-WiseConnect SDK experiences a Denial of Service, if it receives malformed L2CAP packets, only hard reset will bring the device to normal operation

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.