---
id: CVE-2026-79377
title: >-
  A heap overflow in the a2dp_decoder_sbc.cpp component 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: >-
  A heap overflow in the a2dp_decoder_sbc.cpp component 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: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-122
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-2026-79377'
references:
  - url: >-
      https://github.com/Derek-Vencer/best1307/blob/296d587ad3766bbff96e7f466cf0775c170a/apps/audioplayers/a2dp_decoder/a2dp_decoder_sbc.cpp
    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: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-08T14:07:04.243257Z'
ingestedAt: '2026-09-08T15:33:26.985Z'
epss: 0.00379
epssPercentile: 0.31831
---

## Overview

A heap overflow in the a2dp_decoder_sbc.cpp component 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.