McAfee pulled Endpoint Security 10.5.4 August-Update

[German]McAfee pulled its August-Update for Endpoint Security 10.5.4, released on August 14, 2018 due to serious issues. This update is causing blue screens after installation.


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In a statement SNS1590 from August 23, 2018 McAfee announced that the download of the Endpoint Security 10.5.4 August Update has been removed from the servers. The problem probably affects the following McAfee environments: 

McAfee Endpoint Security (ENS) 10.5.4 August Update
McAfee ENS Common Client 10.5.4.4287
McAfee ENS Firewall 10.5.4.4223
McAfee ENS Threat Prevention 10.5.4.4318

on systems with Windows 7 to Windows 10 as well as the server variants. According to this article, it does not matter whether the Windows installation runs virtualized or on bare metal. Here is the original McAfee message:

On Tuesday, August 14, 2018, McAfee released the August Update for McAfee Endpoint Security for Windows (ENS) version 10.5.4. Post-release, McAfee received reports from a small number of customers of an infrequent issue on some endpoints during or shortly after the upgrade. In keeping with our objective of providing the highest quality releases, McAfee has removed the ENS 10.5.4 August Update from the Product Downloads site.

For those customers that have downloaded the August Update for ENS 10.5.4 (build 4287), McAfee strongly recommends to not install this update. If you are part way through a deployment or have encountered issues with this update, please contact McAfee Technical Support immediately for assistance.

Details about the issue may be found within an McAfee document dated August 24, 2018 with the title KB90848 – SYSTEM_SERVICE_EXCEPTION (3b) (blue screen error occurs after installing Endpoint Security 10.5.4 August Update). The document says, a blue screen with stop code SYSTEM_SERVICE_EXCEPTION (3b) may occur. The BOSD seems to caused by the driver mfencbdc.sys.

McAfee advises affected users not to install the already downloaded update. The problem is currently being investigated. On systems where the problem occurs, uninstall the August Update and reboot Windows.


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