CVE-2026-28528: Bluekitchen-GmbH Btstack

Medium severity, CVSS 4.6. EPSS: 0.2% 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 Browsing Target GET_FOLDER_ITEMS handler that fails to validate packet boundaries and attribute count data. An attacker with a paired Bluetooth Classic connection can exploit insufficient bounds checking on the attr_id parameter to cause crashes and corrupt attribute bitmap state.

Affected products

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

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