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Vulnerability record · CVE-2026-93015 · published 17 September 2026

CVE-2026-93015: Out-of-bounds write vulnerability

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.

7.0 CVSS 4.0 High EPSS 0.39% · top 69.0% CWE-787 · Out-of-bounds writeCWE-1284 · CWE-1284 Deferred
7.0CVSS 4.0 base score
0.39%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
24 Sep 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/bluekitchen/btstack
https://github.com/bluekitchen/btstack/blob/v1.8.2/src/classic/a2dp.c#L568
https://github.com/bluekitchen/btstack/blob/v1.8.2/src/classic/avdtp.c#L1703
https://github.com/bluekitchen/btstack/commit/fc208fcce056d4e0a5bb916abc90e83a383e1cdf
https://www.vulncheck.com/advisories/bluekitchen-btstack-through-1.8.2-a2dp-sep-discovery-out-of-bounds-write

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Source: NIST National Vulnerability Database (record CVE-2026-93015), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.