---
id: CVE-2026-79376
title: >-
  An issue in the l2cap_handle_data() function of Bestechnic Co., Ltd BES2300
  Bluetooth Audio SoC firmware v3.x and earlier allows attackers to cause a
  Denial of Service (DoS) via sending a crafted L2CAP packet.
summary: >-
  An issue in the l2cap_handle_data() function of Bestechnic Co., Ltd BES2300
  Bluetooth Audio SoC firmware v3.x and earlier allows attackers to cause a
  Denial of Service (DoS) via sending a crafted L2CAP packet.
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-20
  - CWE-1284
published: '2026-09-08'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T16:04:24.933'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-79376'
references:
  - url: 'http://bes2300.com'
    label: cve@mitre.org
  - url: 'http://bestechnic.com'
    label: cve@mitre.org
  - url: 'https://www.bestechnic.com/CVE-2026-79376.pdf'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-08T18:15:09.647970Z'
ingestedAt: '2026-09-08T15:33:26.985Z'
epss: 0.00227
epssPercentile: 0.13688
---

## Overview

An issue in the l2cap_handle_data() function of Bestechnic Co., Ltd BES2300 Bluetooth Audio SoC firmware v3.x and earlier allows attackers to cause a Denial of Service (DoS) via sending a crafted L2CAP packet.

## Remediation

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