Issues with Dell Optiplex after Release KB5025885: Windows Boot Manager revocations for Secure Boot changes associated with CVE-2023-24932

Question

Hello all,

We have noticed changes in the Bitlocker Event Manager on some Optiplex from Dell after the update release.

Several reboots were performed and the system goes into Bitlocker recovery mode, we also had cases where the boot order was changed.

After we started investigating this issue, we found the release based on the Microsoft link (see link)

Microsoft says that this is not enabled by default. (see link)

https://support.microsoft.com/en-us/topic/kb5025885-how-to-manage-the-windows-boot-manager-revocations-for-secure-boot-changes-associated-with-cve-2023-24932-41a975df-beb2-40c1-99a3-b3ff139f832d#bkmk_timing

I have also posted the logs with the issue ID from the Bitlocker Event Manger.

Any ideeas?

Thanks for the support.