CVE-2016-9801: In BlueZ 5.42, a buffer overflow was observed in "set_ext_ctrl" function in "tools/parser/l2cap.c" source f...

Security readout for executives and security teams

CVE-2016-9801 is a BlueZ 5.42 issue where a corrupted Bluetooth dump file can trigger a buffer overflow in a parser tool. The public data does not show remote exploitation, a CVSS score, or active exploitation. Business urgency depends on whether staff or automation process untrusted Bluetooth capture files. Exposure is most likely where BlueZ 5.42 parser tooling is installed and used to inspect Bluetooth dump files, especially untrusted or externally supplied captures. Treat as a targeted hygiene item, not an emergency, unless your organization processes untrusted Bluetooth dumps. Prioritize updating analysis systems and reducing exposure from externally supplied captures. Mitigation focus: Check Linux distribution and BlueZ vendor guidance for fixed packages.; Update BlueZ through supported package channels where updates are available.; Avoid parsing untrusted Bluetooth dump files on production systems..

Prepared

Jun 13, 2026, 13:16 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.