CVE-2026-28527
LowCVSS 3.5Exploitation Probability (EPSS)
Low risk5th percentile - higher than 5% of all known CVEs
Summary
A vulnerability in BTstack prior to version 1.8.1 allows an out-of-bounds read in the AVRCP Controller GET_PLAYER_APPLICATION_SETTING_ATTRIBUTE_TEXT and GET_PLAYER_APPLICATION_SETTING_VALUE_TEXT handlers. An attacker within Bluetooth Classic range can send a crafted VENDOR_DEPENDENT response, leading to information disclosure and potential device crashes.
Risk Assessment
The risk includes leakage of sensitive data from device memory and potential system instability, affecting service availability and data security.
Recommendation
Immediately update BTstack to version 1.8.1 or later, which contains the fix for this vulnerability.
Other vulnerabilities in BTstack
See all- CVE-2026-28528Medium
A vulnerability in BTstack prior to version 1.8.1 allows an out-of-bounds read in the AVRCP Browsing Target GET_FOLDER_ITEMS handler due to missing packet boundary and attribute count validation. A paired Bluetooth Classic attacker can trigger crashes and corrupt attribute bitmap state.
- CVE-2026-28526Low
A vulnerability in BTstack prior to version 1.8.1 allows an out-of-bounds read in the AVRCP LIST_PLAYER_APPLICATION_SETTING_ATTRIBUTES and LIST_PLAYER_APPLICATION_SETTING_VALUES handlers. An attacker with a paired Bluetooth Classic connection can send a crafted VENDOR_DEPENDENT response with a controlled count value to trigger an out-of-bounds read from the L2CAP receive buffer, potentially causing a crash on resource-constrained devices.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS