The genuine CVPNDRVA.sys file is a software component of Cisco Systems IPsec Driver by Cisco Systems.
A driver for Cisco's Internet Protocol Security, this application monitors IP traffic across your Cisco Virtual Private Network. A Virtual Private Network client is a utility that enables you to connect to a private network through a public connection to the internet. This application contains a packet security list that it continually matches against each incoming individual packet in order to filter unwanted or unnecessary traffic. Based in San Jose, California, Cisco Systems is the world leader in network hardware.

CVPNDrvA stands for Cisco Systems VPN Client IPSec Driver A

CVPNDRVA.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if CVPNDRVA.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for CVPNDRVA drivers in need of updating

CVPNDRVA.sys file information

The process known as Cisco Systems VPN Client IPSec Driver or Cisco Systems Inc. IPSec Driver belongs to software Cisco Systems IPsec Driver or Cisco Systems VPN Client or Vanderbilt University IPsec Driver by Cisco Systems (

Description: CVPNDRVA.sys is not essential for the Windows OS and causes relatively few problems. CVPNDRVA.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 306,300 bytes (20% of all occurrences), 306,299 bytes and 6 more variants. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program is not visible. The service has no detailed description. CVPNDRVA.sys is not a Windows core file. Therefore the technical security rating is 33% dangerous, however you should also read the user reviews.

Uninstalling this variant: You can uninstall Cisco Systems VPN Client, or ask Support team for help. Go to Cisco Systems VPN Client in the Windows Control Panel (Software or Programs section) to uninstall it, or go to for Customer Support.

Recommended: Identify CVPNDRVA.sys related errors

Important: Some malware disguises itself as CVPNDRVA.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the CVPNDRVA.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

Cisco VPN Client Network Driver
  Jerome Pioux   (further information)
gehört zu Cisco VPN Client
  Security TAC  

Summary: Average user rating of CVPNDRVA.sys: based on 2 votes with 2 user comments. 2 users think CVPNDRVA.sys is essential for Windows or an installed application.

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Best practices for resolving CVPNDRVA issues

A clean and tidy computer is the key requirement for avoiding problems with CVPNDRVA. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the CVPNDRVA.sys process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

CVPNDRVA.sys [all]