CVE-2026-93015

high

Description

BlueKitchen BTstack through 1.8.2 fails to validate the peer-reported endpoint count against table bounds in A2DP stream endpoint discovery. A bonded peer can send an AVDTP DISCOVER response with more endpoints than the fixed table holds, causing out-of-bounds writes that corrupt adjacent static objects and crash the process or sever event delivery.

References

https://www.vulncheck.com/advisories/bluekitchen-btstack-through-1.8.2-a2dp-sep-discovery-out-of-bounds-write

https://github.com/bluekitchen/btstack/commit/fc208fcce056d4e0a5bb916abc90e83a383e1cdf

https://github.com/bluekitchen/btstack/blob/v1.8.2/src/classic/avdtp.c#L1703

https://github.com/bluekitchen/btstack/blob/v1.8.2/src/classic/a2dp.c#L568

https://github.com/bluekitchen/btstack

Details

Source: Mitre, NVD

Published: 2026-09-17

Updated: 2026-09-24

Risk Information

CVSS v2

Base Score: 6.2

Vector: CVSS2#AV:A/AC:L/Au:S/C:N/I:P/A:C

Severity: Medium

CVSS v3

Base Score: 6.3

Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Severity: Medium

CVSS v4

Base Score: 7

Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00243