Out-of-bounds Read in Bluekitchen Gmbh Btstack
CVE-2026-28526
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.002 (13.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 13.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.001
Affected products
- Bluekitchen Gmbh Btstack — versions 0
- Bluekitchen-Gmbh Btstack
Weakness classification (CWE)
References
- github.com/bluekitchen/btstack/releases/tag/v1.8.1 (release-notes, Release Notes, patch)
- www.vulncheck.com/advisories/bluekitchen-btstack-avrcp-controller-list-player-a… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-28526?
- CVE-2026-28526 is a low-severity vulnerability in Bluekitchen Gmbh Btstack, classified under Out-of-bounds Read. CVSS score: 3.5/10. Published 2026-03-30.
- How severe is CVE-2026-28526?
- Low severity. CVSS v3 base score is 3.5 out of 10.