YellowKey highlights why MSPs need a faster way to turn urgent endpoint security guidance into controlled action across every customer environment. With the Microsoft mitigation script now available as a ready-made Plentics Configuration Package, MSPs can reduce exposure to CVE-2026-45585 without manual tenant-by-tenant work.

YellowKey is a BitLocker-related Windows vulnerability tracked by Microsoft as CVE-2026-45585. The issue is linked to the Windows Recovery Environment, or WinRE, and may allow BitLocker protection to be bypassed in scenarios where an attacker has physical access to a device. The vulnerability is especially relevant for organizations that rely on BitLocker as part of their endpoint security baseline, and it highlights the importance of being able to react quickly across managed customer environments.

Microsoft has published a mitigation script for the vulnerability. The script removes autofstx.exe from the WinRE BootExecute registry value, helping reduce exposure to the issue until a permanent fix or further guidance is available.

For MSPs managing multiple Microsoft Intune tenants, the key challenge is not only understanding the mitigation, but deploying it consistently and efficiently across customer environments.

To make this easier, the Microsoft mitigation script is now available as a ready-made Configuration Package in the Plentics Configuration Package catalog. MSPs can use Plentics to deploy the YellowKey mitigation to their end customers in a controlled, repeatable way without manual tenant-by-tenant work. This is exactly where Plentics helps MSPs scale: turning urgent endpoint security actions into standardized, multi-tenant operations.

Our MSP partners can deploy the mitigation through Endpoint Management capability. Configuration Package can be found in Orders > Available Packages > Mitigate CVE-2026-45585 (Windows BitLocker Security Feature Bypass "YellowKey" Vulnerability).

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