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ESET Endpoint Security, ESET Endpoint Antivirus and ESET Windows Server products HOTFIX - Nieuws / Releases / Hotfix - ESET Tech Center

Feb 13 2018

ESET Endpoint Security, ESET Endpoint Antivirus and ESET Windows Server products HOTFIX

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This is to inform you that we have decided to instantly replace the installation binaries of ESET Endpoint Security, ESET Endpoint Antivirus and all Windows Server products* on our global website and in software repository in order to avoid compatibility issues with upcoming Windows Update distributions. This time, we can confirm the symptoms for 32-bit variants of Windows 7, 8.1, 10 RS1-RS3, as well as Windows Server 2008, 2012**, which makes the situation even more aggravated.

Existing product installations receiving regular module updates are compatible with this Windows Update batch, however fresh deployments are likely to run into troubles, because they would install outdated anti-stealth module first. This must be taken into account for various deployment techniques, e.g. ESET Remote Administrator 5.x installation packages or other all-in-one installers, that have been packaged using existing versions and might be reused later. Installing any of the products on 32-bit Windows operating system that has downloaded and applied the KBs below should result in stop error (BSOD) before the installation is completed and unfortunately, fall into the same state after restart.

We need to respond quickly to this sudden change of Microsoft OS architecture, which comes as another follow-up to Spectre/Meltdown vulnerabilities and will become publicly available depending on Windows Update configuration starting Tuesday morning, Feb 13th 2018.

The fixed builds are being prepared for upload and we estimate to finish this process during Monday, Feb 12th 2018. Please note that this is only a build repack with anti-stealth module replaced (version 1123), and 4th digit in version number incremented, without new functionality added. The repository of ESET Remote Administrator 6.x will be modified to not offer other builds for download than those being currently rebuilt.


  • Fixed: Stop error (BSOD) in Anti-Stealth module on Windows 7, Windows 8.1, Windows 10 RS1, RS2, RS3, Windows Server 2008, 2012** as a result of OS update series remediating critical vulnerabilities in processor architecture (KB4074587, KB4074594, KB4074597, KB4074594, KB4051865, KB4074593, KB4074589, KB4074588, KB4074592, KB4074590).


Build version: 6.6.2072.x, 6.5.2118.x, 5.0.2271.x (ESET Endpoint Antivirus/Security), 6.5.x.x (ESET Windows Server products)
Languages: all
Project stage: Hotfix

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