Buffer overflow in Bluekitchen Gmbh Btstack
CVE-2026-93015
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H.
EPSS exploit prediction
EPSS: 0.004 (33.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/bluekitchen/btstack/commit/fc208fcce056d4e0a5bb916abc90e83a383e1cdf (patch)
- github.com/bluekitchen/btstack/blob/v1.8.2/src/classic/a2dp.c (technical-description)
- github.com/bluekitchen/btstack/blob/v1.8.2/src/classic/avdtp.c (technical-description)
- github.com/bluekitchen/btstack (product)
- www.vulncheck.com/advisories/bluekitchen-btstack-through-1.8.2-a2dp-sep-discove… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-93015?
- CVE-2026-93015 is a medium-severity vulnerability in Bluekitchen Gmbh Btstack, classified under Out-of-bounds Write. CVSS score: 6.3/10. Published 2026-09-17.
- How severe is CVE-2026-93015?
- Medium severity. CVSS v3 base score is 6.3 out of 10.