Bestechnic BES2300 Bluetooth Audio SoC firmware up to 4.x SBC_DecodeFrames buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k1.23+

Summaryinfo

A vulnerability was found in Bestechnic BES2300 Bluetooth Audio SoC firmware up to 4.x and classified as critical. This affects the function SBC_DecodeFrames. Such manipulation leads to buffer overflow. This vulnerability is referenced as CVE-2026-79379. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Bestechnic BES2300 Bluetooth Audio SoC firmware up to 4.x and classified as critical. Affected by this issue is the function SBC_DecodeFrames. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is availability. CVE summarizes:

A buffer overflow in the SBC_DecodeFrames() function of Bestechnic Co., Ltd BES2300 Bluetooth Audio SoC firmware v3.x and earlier and fixed in v.5.0 allows attackers to cause a Denial of Service (DoS) via sending a crafted frame.

This vulnerability is handled as CVE-2026-79379 since 08/25/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit.

Upgrading to version 5.0 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: BES2300 Bluetooth Audio SoC firmware 5.0

Timelineinfo

08/25/2026 CVE reserved
09/08/2026 +14 days Advisory disclosed
09/08/2026 +0 days VulDB entry created
09/08/2026 +0 days VulDB entry last update

Sourcesinfo

Status: Confirmed

CVE: CVE-2026-79379 (🔒)
GCVE (CVE): GCVE-0-2026-79379
GCVE (VulDB): GCVE-100-399830

Entryinfo

Created: 09/08/2026 15:47
Changes: 09/08/2026 15:47 (54)
Complete: 🔍
Cache ID: 216::103

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