An issue in the l2cap_handle_data() function of Bestechnic Co., Ltd BES2300 Bluetooth Audio SoC firmware v3.x and earlier allows attackers…

published 2026-09-08 2mo ago modified 2026-09-09 2mo ago also EUVD-2026-72776

cvss: 8.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits: 0; none known

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.

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2mo ago (2026-09-08)

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	8.8	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	8.8	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness

CWE-20 Improper Input Validation
CWE-1284 Improper Validation of Specified Quantity in Input

References

Sources

CVE List CVE-2026-79376
NVD CVE-2026-79376

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