Memory disclosure and crashes via unchecked AVRCP responses
Published Mar 30, 2026 · Updated Mar 30, 2026
Out-of-bounds reads in BTstack before 1.8.1 allow physically proximate attackers to disclose memory or crash affected devices. The AVRCP Controller GET_PLAYER_APPLICATION_SETTING_ATTRIBUTE_TEXT and GET_PLAYER_APPLICATION_SETTING_VALUE_TEXT handlers parse attacker-controlled VENDOR_DEPENDENT response fields beyond the received packet boundary. Exploitation requires a paired Bluetooth Classic connection and the vulnerable AVRCP Controller code path; no integrity impact is reported.
Summary
What happened
Out-of-bounds reads in BTstack before 1.8.1 allow physically proximate attackers to disclose memory or crash affected devices. The AVRCP Controller GET_PLAYER_APPLICATION_SETTING_ATTRIBUTE_TEXT and GET_PLAYER_APPLICATION_SETTING_VALUE_TEXT handlers parse attacker-controlled VENDOR_DEPENDENT response fields beyond the received packet boundary. Exploitation requires a paired Bluetooth Classic connection and the vulnerable AVRCP Controller code path; no integrity impact is reported.
The record
- CVE
- CVE-2026-28527
- Published
- Mar 30, 2026
- Updated
- Mar 30, 2026
- Vendor
- BlueKitchen GmbH
- Product
- BTstack
- Classifications
- CWE-125, T1499.004
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 30, 2026CVE publishedPublication date reported by the CVE source.
- Mar 30, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <1.8.1
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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