CVE-2026-28526: CWE-125 Out-of-bounds Read in BlueKitchen GmbH BTstack
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.
AI Analysis
Technical Summary
CVE-2026-28526 describes an out-of-bounds read vulnerability in BlueKitchen GmbH's BTstack Bluetooth protocol stack versions before 1.8.1. The issue exists in the AVRCP Controller's handling of LIST_PLAYER_APPLICATION_SETTING_ATTRIBUTES and LIST_PLAYER_APPLICATION_SETTING_VALUES commands. An attacker with a paired Bluetooth Classic connection can send a specially crafted VENDOR_DEPENDENT response containing an attacker-controlled count value, which causes the stack to read beyond the allocated L2CAP receive buffer. This can lead to application crashes, particularly on devices with limited resources.
Potential Impact
The vulnerability allows an attacker with a paired Bluetooth Classic connection to cause an out-of-bounds read, which may result in a crash of the affected device. There is no indication of code execution or data disclosure beyond the out-of-bounds read. The impact is primarily denial of service on resource-constrained devices.
Mitigation Recommendations
No official patch or fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid pairing with untrusted Bluetooth Classic devices and monitor for updates from BlueKitchen GmbH regarding BTstack version 1.8.1 or later.
CVE-2026-28526: CWE-125 Out-of-bounds Read in BlueKitchen GmbH BTstack
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.
CVSS v4.0
Score 2.1low
Affected software
pkg:github/bluekitchen/btstackRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-28526 describes an out-of-bounds read vulnerability in BlueKitchen GmbH's BTstack Bluetooth protocol stack versions before 1.8.1. The issue exists in the AVRCP Controller's handling of LIST_PLAYER_APPLICATION_SETTING_ATTRIBUTES and LIST_PLAYER_APPLICATION_SETTING_VALUES commands. An attacker with a paired Bluetooth Classic connection can send a specially crafted VENDOR_DEPENDENT response containing an attacker-controlled count value, which causes the stack to read beyond the allocated L2CAP receive buffer. This can lead to application crashes, particularly on devices with limited resources.
Potential Impact
The vulnerability allows an attacker with a paired Bluetooth Classic connection to cause an out-of-bounds read, which may result in a crash of the affected device. There is no indication of code execution or data disclosure beyond the out-of-bounds read. The impact is primarily denial of service on resource-constrained devices.
Mitigation Recommendations
No official patch or fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid pairing with untrusted Bluetooth Classic devices and monitor for updates from BlueKitchen GmbH regarding BTstack version 1.8.1 or later.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-02-27T21:07:55.468Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 69ca8777e6bfc5ba1d3aaeb1
Added to database: 03/30/2026, 14:23:51 UTC
Last enriched: 07/15/2026, 10:49:28 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 127
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