Out-of-bounds Read in Bluekitchen Gmbh Btstack
CVE-2026-28528
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.
Vulnerability class: Buffer Overflow
EPSS: 0.001 (3.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L.
Affected products
- Bluekitchen Gmbh Btstack — versions 0
- Bluekitchen-gmbh Btstack
Weakness classification (CWE)
References
- disclosure@vulncheck.com (release-notes, Release Notes, patch)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-28528?
- CVE-2026-28528 is a medium-severity vulnerability in Bluekitchen Gmbh Btstack, classified under Out-of-bounds Read. CVSS score: 4.6/10. Published 2026-03-30.
- How severe is CVE-2026-28528?
- Medium severity. CVSS v3 base score is 4.6 out of 10.