CVE-2026-28528

BlueKitchen BTstack < 1.8.1 AVRCP Browsing Target GET_FOLDER_ITEMS Handler OOB Read / Undefined Behavior

State: Published
Severity: 2.1 Low
Published: Mar 30, 2026
Updated: Jul 14, 2026
Reserved: Feb 27, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	2.1 Low	CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N	VulnCheck
3.1	4.6 Medium	CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L	VulnCheck

Weaknesses

CWE-125 Out-of-bounds Read
CWE-758 Reliance on Undefined, Unspecified, or Implementation-Defined Behavior

Affected Products

Product	Versions
BTstackBlueKitchen GmbH	before 1.8.1Affected

References

https://github.com/bluekitchen/btstack/releases/tag/v1.8.1release-notespatch
https://www.vulncheck.com/advisories/bluekitchen-btstack-avrcp-browsing-target-get-folder-items-handler-oob-read-undefined-behaviorthird-party-advisory

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