[German]There is an issue with Outlook Classic where the client crashes on startup due to a faulty Microsoft Teams Meeting add-in. As far as I know, Microsoft is still investigating this problem. Below, I have compiled some workarounds for those affected so that Outlook Classic can be used again.
[German]Microsoft has already released a hotfix update on March 23, 2026, for users of Windows 11 Enterprise LTSC 2024. This update is intended to resolve sign-in issues with Microsoft accounts caused by update KB5079473 from March 10, 2026. It is likely the hotfix counterpart to the out-of-band update KB5085516.
[German]Citrix has issued a warning about several security vulnerabilities classified as critical in its Citrix Gateway and Citrix Netscaler ADC. CERT Bund has also published a corresponding advisory. Citrix has released firmware updates to address these vulnerabilities.
[German]A quick note for Google Chrome users. On March 23, 2026, Google released a new version of Chrome (146.0.7680.164/165) that addresses eight vulnerabilities in the browser. They are rated as high. It feels like the browser has to be updated every two days due to vulnerabilities, and Google plans to increase the frequency soon.
[German]Users of Microsoft Teams (Free version) and other Microsoft apps (Word, Excel, etc.) have encountered sign-in issues on Windows 11 24H2–25H2 after installing update KB5079473 from March 10, 2026. On March 21, 2026, Microsoft released the out-of-band update KB5085516 to resolve these issues.
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[German]The Windchill and ZeroPLM software systems contain critical vulnerabilities (CVS Index 10.0) that companies using these products should have been aware of since the weekend. These vulnerabilities have prompted various German state criminal investigation offices to send police officers to visit system administrators, a inform them to take action (a move that has caused quite a stir).
[German]I'm going to break down a brief issue—along with its solution—in a separate blog post, one that has been plaguing Windows users since the January 2026 Patch Day. Certain Nvidia graphics chips experienced display issues, even on Windows 10, after the January 2026 security updates were installed. Readers report that the March 2026 update for Windows 10 resolves the issue.
[German]Two critical vulnerabilities have recently been disclosed in the Ubiquiti UniFi Network Application. Vulnerability CVE-2026-22557 has a CVSS score of 10.0 and can be exploited without authentication to take over an account. CVE-2026-22558 has a CVSS score of 7.7 and allows for privilege escalation.
[German]Microsoft is currently investigating a reported issue with Outlook Classic. There are user reports that using the Microsoft Teams Meeting add-in causes the Outlook Classic client to crash or become unusable.
[German]A quick question for users and administrators who are still using Microsoft Outlook 2019 (support for Office 2019 expired in October 2025). I've received a report that it's currently no longer possible to connect to Exchange Online mailboxes. There have also been reports that Outlook 2021 and Outlook 2024 LTSC—and possibly Outlook 365 as well—may be affected. However, there is a workaround that seems to be helping those affected.
MVP:
2013 – 2016
WIMVP:
2017 – 2020
