Vulnerability · Published Mar 30, 2026 · Assigned by VulnCheck

CVE-2026-28528BlueKitchen BTstack < 1.8.1 AVRCP Browsing Target GET_FOLDER_ITEMS Handler OOB Read / Undefined Behavior

Medium 4.6

In plain English

A medium-severity out-of-bounds read in BTstack from BlueKitchen GmbH. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).

Severity (CVSS 3.1)4.6Medium

Exploit odds (30 days)0.1%top 96.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
BlueKitchen GmbH	BTstack	0 – before 1.8.1

Weakness: CWE-125, CWE-758 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

References

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