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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.

PUBLISHED Reserved 2026-02-27 | Published 2026-03-30 | Updated 2026-03-30 | Assigner VulnCheck




LOW: 2.1CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

LOW: 3.5CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Problem types

CWE-125 Out-of-bounds Read

Product status

Default status
unaffected

Any version before 1.8.1
affected

Credits

Kazuma Matsumoto, a security researcher at GMO Cybersecurity by IERAE, Inc. finder

VulnCheck coordinator

References

github.com/bluekitchen/btstack/releases/tag/v1.8.1 release-notes patch

www.vulncheck.com/...r-application-setting-handlers-oob-read third-party-advisory

cve.org (CVE-2026-28526)

nvd.nist.gov (CVE-2026-28526)

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