CVE-2026-28526 BlueKitchen BTstack < 1.8.1 AVRCP Controller LIST_PLAYER_APPLICATION_SETTING_* Handlers OOB Read
A nearby attacker with a paired Bluetooth connection can trigger an out-of-bounds read in BTstack, potentially causing a crash or leaking memory.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-28526?
CVE-2026-28526 is a low-severity memory corruption vulnerability in BlueKitchen GmbH BTstack, published on 30 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
BlueKitchen BTstack versions prior to 1.8.1 contain an out-of-bounds read vulnerability in the AVRCP Controller LIST_PLAYER_APPLICATION_SETTING_ATTRIBUTES and LIST_PLAYER_APPLICATION_SETTING_VALUES handlers that allows attackers to read beyond buffer boundaries. A nearby attacker with a paired Bluetooth Classic connection can send a specially crafted VENDOR_DEPENDENT response with an attacker-controlled count value to trigger an out-of-bounds read from the L2CAP receive buffer, potentially causing a crash on resource-constrained devices.
Weakness: CWE-125
Which versions are affected by CVE-2026-28526?
It affects 1 product.
Products include Bluekitchen-Gmbh Btstack.
How do I fix CVE-2026-28526?
No fix has been published for CVE-2026-28526 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-28526 being exploited?
There is no known exploitation of CVE-2026-28526 in the wild and no public exploit code.
Other vulnerabilities in BlueKitchen GmbH BTstack
Sources
Also known as GHSA-6m8p-57vw-28gv.