CVE-2016-9917: In BlueZ 5.42, a buffer overflow was observed in "read_n" function in "tools/hcidump.c" source file.

Security readout for executives and security teams

CVE-2016-9917 is a crash bug in BlueZ 5.42's hcidump utility. Processing a corrupted Bluetooth dump file can trigger a buffer overflow in tools/hcidump.c and crash the tool. The provided sources do not show remote compromise, privilege escalation, or active exploitation. Exposure is most likely on Linux systems with BlueZ 5.42 hcidump installed and used to inspect Bluetooth packet dump files, especially untrusted or externally supplied dumps. General Bluetooth service exposure is not established by the provided evidence. Treat this as a low-urgency hygiene item unless your team routinely analyzes untrusted Bluetooth captures. It primarily affects diagnostic tooling availability, not documented production Bluetooth service compromise. Mitigation focus: Check vendor BlueZ package guidance for CVE-2016-9917 fixes.; Update BlueZ packages where your distribution provides a fix.; Avoid opening untrusted Bluetooth dump files with vulnerable hcidump builds..

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.