Bluetooth Firmware -broadcom- Update Version 2.2.3.593 |link| Site

Broadcom Bluetooth firmware version 2.2.3.593 (often packaged as 2.2.3.593.596) is a critical legacy update primarily designed to enhance the stability and reliability of Bluetooth connections on older laptops and devices. Core Feature: Enhanced Connection Stability

3. Security Vulnerabilities Addressed

3.1 CVE-2017-0781 (BlueBorne)

Version 2.2.3.593 directly patches the BlueBorne vulnerability affecting over 2 billion devices. In Broadcom chips, the flaw resided in the SDP (Service Discovery Protocol) server’s parsing of continuation requests. An unauthenticated attacker could overflow the heap via a malformed SDP response, leading to remote code execution (RCE) in the Bluetooth kernel context. bluetooth firmware -broadcom- update version 2.2.3.593

• Better connection stability (reduced disconnects)
• Low-energy (BLE) pairing fixes
• Windows 10/11 compatibility improvements
• Reduced power consumption

Key Features and Fixes:

Firmware hash:
SHA-256: 3F1A2B4C5D6E7F8A9B0C1D2E3F4A5B6C7D8E9F0A1B2C3D4E5F6A7B8C9D0E1F2A Broadcom Bluetooth firmware version 2

• Open Device Manager > Bluetooth > [Your Broadcom Adapter] > Properties > Power Management.
• Uncheck “Allow the computer to turn off this device to save power.”
• Also check USB Root Hub properties – disable power saving there.