[German]On May 11, 2021, Microsoft released security updates for Windows clients and servers, for Office, etc. – as well as for Microsoft Exchange – have been released. Below is a compact overview of these updates.
[German]Currently, reports are piling up that an update of Outlook (C2R version) may have caused a bug. The mail program suddenly displays only the first lines of emails. Here is a summary of what has come to my attention. Addendum: Microsoft has released a Fix.
[German]Microsoft has announced on May 11, 2021 – the expected (see Is a hotfix for Microsoft Exchange coming today? (May 11, 2021)) Security updates released for Exchange Server 2013, Exchange Server 2016 and Exchange Server 2019. This is to immediately close a Microsoft Exchange Server spoofing vulnerability (CVE-2021-31209). Security update KB5003435 is available for download from the Microsoft Update Catalog.
[German]Currently, there are more and more reports that no updates are found in the Windows Server Update Service (WSUS). Only Defender updates are trickling in – it looks like Microsoft is not (yet) making the May 11, 2021 security updates available in WSUS.
[German]A brief note and heads up for administrators of Microsoft Exchange on-premises systems. Reserve some time today (05/11/2021) to patch Exchange servers. If the available information is correct, Microsoft is rolling out a critical hotfix for Microsoft Exchange Server in the coming hours (around 10:00 a.m. PST), which should be installed promptly.
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[German]The developers of the VLC Player have just released version 3.0.14 for Linux, macOS and Windows. After the somewhat "delayed" version 3.0.14, this is only a minimal maintenance update, which should fix bugs.
[German]Currently it seems that users of Microsoft Office 365 are facing issues receiving emails send from Google & LinkedIn domains. These emails are rejected in some cases. Microsoft has confirmed that and is working on a solution, and it seems that the issue has been resolved.
[German]Since the end of April 2021, numerous users have been complaining about a broken autocomplete display in Outlook that only shows large icons and the entries are no longer readable. The whole thing probably occurs with Outlook version 2016 and 2019 and seems to have been triggered by a Microsoft Office 365 update from late April 2021. Here is a summary of what has come to my attention so far.
[German]Today a short article about a security topic I recently came across by chance. It's about the possibility to create hidden but active user accounts under Windows via net user command. This ability is increasingly being exploited by malware to set up a possible backdoor in the system.
[German]A German security researcher has managed to break into the firmware of Apple's AirTag controller, dump it and then manipulate it after a few attempts. This allowed the security researcher to display a YouTube video on the phone to users trying to read an AirTag. Here is some information on this issue.
MVP:
2013 – 2016
WIMVP:
2017 – 2020
