CVE-2026-28527: 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 GET_PLAYER_APPLICATION_SETTING_ATTRIBUTE_TEXT and GET_PLAYER_APPLICATION_SETTING_VALUE_TEXT handlers that allows nearby attackers to read beyond packet boundaries. Attackers can establish a paired Bluetooth Classic connection and send specially crafted VENDOR_DEPENDENT responses to trigger out-of-bounds reads, causing information disclosure and potential crashes on affected devices.
AI Analysis
Technical Summary
CVE-2026-28527 is an out-of-bounds read vulnerability (CWE-125) in BlueKitchen GmbH's BTstack Bluetooth protocol stack versions prior to 1.8.1. The issue exists in the AVRCP Controller's handling of GET_PLAYER_APPLICATION_SETTING_ATTRIBUTE_TEXT and GET_PLAYER_APPLICATION_SETTING_VALUE_TEXT commands. An attacker with a paired Bluetooth Classic connection can send specially crafted VENDOR_DEPENDENT responses that cause the stack to read beyond the intended packet boundaries. This can result in information disclosure and potentially cause device crashes. The vulnerability has a CVSS 4.0 score of 2.1, indicating low severity. There is no indication of known exploits in the wild or an official patch available at this time.
Potential Impact
The vulnerability allows an attacker with a paired Bluetooth Classic connection to cause out-of-bounds reads in the BTstack AVRCP Controller handlers. This can lead to information disclosure of memory contents beyond packet boundaries and may cause device crashes. The impact is limited by the requirement for pairing and user interaction (UI required). The overall severity is low.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, limit pairing to trusted devices and avoid pairing with unknown Bluetooth Classic devices. Monitor vendor communications for updates regarding patches or mitigations.
CVE-2026-28527: 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 GET_PLAYER_APPLICATION_SETTING_ATTRIBUTE_TEXT and GET_PLAYER_APPLICATION_SETTING_VALUE_TEXT handlers that allows nearby attackers to read beyond packet boundaries. Attackers can establish a paired Bluetooth Classic connection and send specially crafted VENDOR_DEPENDENT responses to trigger out-of-bounds reads, causing information disclosure and potential crashes on affected 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-2026-28527 is an out-of-bounds read vulnerability (CWE-125) in BlueKitchen GmbH's BTstack Bluetooth protocol stack versions prior to 1.8.1. The issue exists in the AVRCP Controller's handling of GET_PLAYER_APPLICATION_SETTING_ATTRIBUTE_TEXT and GET_PLAYER_APPLICATION_SETTING_VALUE_TEXT commands. An attacker with a paired Bluetooth Classic connection can send specially crafted VENDOR_DEPENDENT responses that cause the stack to read beyond the intended packet boundaries. This can result in information disclosure and potentially cause device crashes. The vulnerability has a CVSS 4.0 score of 2.1, indicating low severity. There is no indication of known exploits in the wild or an official patch available at this time.
Potential Impact
The vulnerability allows an attacker with a paired Bluetooth Classic connection to cause out-of-bounds reads in the BTstack AVRCP Controller handlers. This can lead to information disclosure of memory contents beyond packet boundaries and may cause device crashes. The impact is limited by the requirement for pairing and user interaction (UI required). The overall severity is low.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, limit pairing to trusted devices and avoid pairing with unknown Bluetooth Classic devices. Monitor vendor communications for updates regarding patches or mitigations.
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: 69ca8777e6bfc5ba1d3aaeb5
Added to database: 03/30/2026, 14:23:51 UTC
Last enriched: 07/15/2026, 10:49:36 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 152
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