Broadcom Corporation (now part of Cypress Semiconductor and subsequently Infineon Technologies) has been a dominant supplier of Bluetooth and combined Bluetooth/Wi-Fi (combo) chipsets for over two decades. Their firmware is integral to millions of laptops (Dell, HP, Lenovo, Apple pre-T2), desktops with USB dongles, and embedded systems.
Today, using version 2.2.3.593 is a "use at your own risk" endeavor. Since Broadcom has stopped active support for these consumer devices, they remain vulnerable to several documented Bluetooth security risks, such as KNOB (CVE-2019-9506) and BIAS (CVE-2020-10135). bluetooth firmware -broadcom- update version 2.2.3.593
, ensuring that when the Linux kernel or Windows driver requests a direct firmware load, the handshake is instantaneous. The Impact Broadcom Corporation (now part of Cypress Semiconductor and