What’s Vulnerable › Vulnerabilities

CVE-2026-93015: BlueKitchen BTstack through 1.8.2 A2DP SEP Discovery Out-of-Bounds Write

• Severity: medium (CVSS 6.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-09-24
• Weakness: CWE-787

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.

Affected products

• BlueKitchen GmbH BTstack: through 1.8.2

References

• 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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