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Host Intrusion Prevention 8.0.0 Patch 1 Hotfix 833271 Release Notes
Technical Articles ID:   KB77324
Last Modified:  5/7/2018


McAfee Host Intrusion Prevention 8.0 (RTW) Patch 1 Hotfix 833271


Host Intrusion Prevention (Host IPS) 8.0.0 (RTW )Patch 1 Hotfix 833271

Package Date: February 4, 2013
McAfee considers this release High Priority for all environments. Failure to apply a High Priority update might result in potential business impact. See KB51560 for information on ratings.

NOTE: Contact Technical Support to obtain this hotfix. Include this article number in your Service Request.


The following issue has been fixed in this release:

Article Reference Description
 KB76593 806069

Issue: System bugcheck D1 in mfefirek.sys when using Host IPS 8.0 Patch 2 and certain VPN clients.

Resolution: Certain VPN clients exposed a compatibility issue between Microsoft’s WFP framework and the McAfee WFP driver. McAfee has implemented a workaround in the WFP driver that resolves the issue.

The Product Version Build Number from Help\About is:
The following binaries are version
  • [INSTALLDIR]\VSCore\release\* [Minus HipShieldK.*, FireNfcp.*]
  • [INSTALLDIR]\VSCore\x64\* [Minus FireNfcp.*]


Apply Hotfix 833271 on all Host IPS 8.0 RTW or Host IPS 8.0 Patch 1 systems before you upgrade to Patch 2. 
The Hotfix 833271 package is available to Registered ServicePortal users only. To download Software Updates:
  1. Log in to the McAfee ServicePortal at http://mysupport.mcafee.com.

    NOTE: See KB54031 for information on ServicePortal registration.
  2. Click Download Software Updates under Self Service.
  3. Locate and download Host IPS 8.0.0 Hotfix 833271.
Installation instructions
Host IPS 8.0.0 Hotfix 833271 updates Host IPS Client 8.0.0 (RTW) or Patch 1 systems only.

Resolved issue
This hotfix includes the fix to a problem that was introduced in Patch 2. See KB76593 for more information.

NOTE: This hotfix should be applied to systems before the upgrade to Patch 2 to prevent the issue from occurring. 

Host IPS 8.0.0 Hotfix 833271 installation does not require a restart, but might cause a brief interruption in network traffic. See KB59945 for the most current information.

To install using ePolicy Orchestrator (ePO):
  1. Add the hotfix package to the ePO Repository.
  2. Deploy using an ePO Agent Update Task.
To install locally, run the patch installer on the target system:
  1. Disable Host IPS protection with an ePO policy or in the local client UI. See KB58629 for instructions to manually disable Host IPS protection.
  2. Run McAfeeHIP_ClientHotfix_833271.exe.
  3. Enable Host IPS protection.


4K • < 1 minute @ broadband


The content of this article originated in English. If there are differences between the English content and its translation, the English content is always the most accurate. Some of this content has been provided using Machine Translation translated by Microsoft.

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