CVE-2026-28527: Bluekitchen-GmbH Btstack

High severity, CVSS 7.3. EPSS: 0.3% chance of exploitation in the next 30 days.

BlueKitchen BTstack versions prior to 1.8.1 contain an out-of-bounds read vulnerability in the AVRCP Controller GET_PLAYER_APPLICATION_SETTING_ATTRIBUTE_TEXT and GET_PLAYER_APPLICATION_SETTING_VALUE_TEXT handlers that allows nearby attackers to read beyond packet boundaries. Attackers can establish a paired Bluetooth Classic connection and send specially crafted VENDOR_DEPENDENT responses to trigger out-of-bounds reads, causing information disclosure and potential crashes on affected devices.

Affected products

• Bluekitchen-GmbH Btstack: before 1.8.1 (fixed in 1.8.1)

Published 2026-03-30. Last modified 2026-07-14.