This VDB: 323
Previous VDB: 319
IMPORTANT! Some application protocol, client, and web application detectors are supported in Version 5.x only. This Advisory refers to these as FireSIGHT application detectors.
Download the VDB update and obtain update instructions from the Sourcefire Support Site at https://support.sourcefire.com. Note that the time it takes to update the VDB can vary. For more information, see the online help on your appliance or download the Sourcefire 3D System User Guide from the Support Site.
VDB Changelog:
from version 319 (2:30:33 PM on March 21st, 2019 UTC)
to version 323 (6:15:14 PM on April 19th, 2019 UTC)
The Ultimate Guide to Autocom CDP-USB Drivers: How to Download Free & Install Correctly For professional mechanics and DIY car enthusiasts, the Autocom CDP (Cars Diagnostic Product) series has long been a gold standard for vehicle diagnostics. Whether you own the CDP+, CDP Pro, or the popular CDP-USB interface, having the correct driver installed on your Windows laptop is the single most critical step to establishing communication with a vehicle’s ECU (Engine Control Unit). However, finding a safe, clean, and free source for these drivers can be frustrating. Many websites offer broken links, outdated versions, or even malware-laden files. This article provides a complete, step-by-step guide to downloading and installing the official Autocom CDP-USB drivers for free, troubleshooting common errors, and ensuring your diagnostic software runs perfectly.
Part 1: Why Do You Need the Correct Autocom CDP-USB Driver? Before diving into the download, it’s essential to understand the “why.” The Autocom CDP-USB is not a standard USB flash drive; it is a complex multiplexer. When you plug it into your PC, Windows sees a generic “unknown device.” The driver acts as a translator, telling Windows:
What kind of device it is (a diagnostic interface). Which COM port to assign (critical for older software). How to handle high-speed data transfer.
Consequences of using the wrong driver:
Blue Screen of Death (BSOD): Incompatible drivers cause system crashes. No Vehicle Connection: The software opens, but “Interface Not Found” appears. Limp Mode Activation: In rare cases, a bad driver can corrupt the firmware.
Thus, downloading the correct free driver is not just about saving money—it’s about protecting your laptop and your vehicle.
Part 2: Identifying Your Autocom CDP Version You cannot download a driver blindly. Autocom produced several hardware revisions. Using the wrong driver will fail. Identify your device: | Model | USB Chip | Typical Driver | Software Compatibility | | :--- | :--- | :--- | :--- | | CDP-USB (Old Blue) | FTDI FT232RL | FTDI Virtual COM Port (VCP) | Autocom 2010-2014 | | CDP+ (Black) | FTDI or WCH CH340 | FTDI or CH340 | Autocom 2014-2016 | | CDP Pro (Truck) | FTDI FT245 | FTDI D2XX | Delphi 2015-2017+ | How to check: Open the device casing (carefully) and look at the small 28-pin chip near the USB port. If it says “FTDI,” you need FTDI drivers. If it says “CH340,” you need CH340 drivers. Autocom Cdp- Usb Drivers Download Free
Part 3: Where to Download Autocom CDP-USB Drivers for Free (Safe Sources) We do not recommend random “driver download” websites. They are often laden with adware. Below are the only free, official, and safe sources: Source 1: The FTDI Chip Official Website (Best for 90% of Users) FTDI (Future Technology Devices International) provides universal drivers for all their chips, including those used in Autocom.
URL: ftdichip.com/Drivers/VCP.htm File to download: “Setup Executable for Windows 10/11/8/7” (CDM v2.12.28 or newer). Why this is best: Direct from the manufacturer, digitally signed by Microsoft, completely free.
Source 2: WCH Official Website (For CH340 clones) If your Autocom CDP uses the cheaper CH340 chip (common in later Chinese-made clones), go here: The Ultimate Guide to Autocom CDP-USB Drivers: How
URL: wch-ic.com/downloads/CH341SER_EXE.html File to download: CH341SER.EXE (Works for CH340 as well). Note: This is also free and official.
Source 3: Delphi / Autocom Original Installation CD (Archival) If you have the original installation CD that came with your interface, the drivers are in the Drivers folder. Copy them to your PC. This is 100% free if you still own the disc. Source 4: Internet Archive (For Legacy XP/Vista Drivers) For extremely old Autocom units (2005-2010):
Detailed installation instructions can be found here.
For a complete list of new and modified information use this link.
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