What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 4.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-30 · updated 2026-07-14
• Weakness: CWE-125

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

• BlueKitchen GmbH BTstack: before 1.8.1 — fixed in 1.8.1

How to fix

Upgrade to a fixed version: BlueKitchen GmbH BTstack 1.8.1. Check the vendor advisory for mitigations.

References

• https://github.com/bluekitchen/btstack/releases/tag/v1.8.1
• https://www.vulncheck.com/advisories/bluekitchen-btstack-avrcp-browsing-target-get-folder-items-handler-oob-read-undefined-behavior

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