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Microsoft Office Security Feature Bypass Vulnerability | How to import into WSUS Server or deploy with Intune or Autopatch CVE-2026-21509, Security Vulnerability, Released: Jan 26, 2026, Last updated: Jan 26, 2026 Assigning CNA Microsoft CVE.org link CVE-2026-21509 Impact Security Feature Bypass Max Severity Important Weakness CWE-807: Reliance on Untrusted Inputs in a Security Decision CVSS […]
CRL Check for Windows Environments CRL check is a tool designed to collect executables from most used paths on your client. It checks whether they are digitally signed with a code certificate and then retrieves the Certificate Revocation Lists (CRL) and OCSP for each signed file it finds. It then automatic verifies if the client […]
Error: Some users added as members to a Microsoft 365 group in Outlook on the web may be given “Owner” permissions by default Important Security Notice for M365 Groups Between October 3 and October 31, 2025, Microsoft Exchange Online experienced an issue that affected Microsoft 365 (M365) Groups. During this period, when a new […]
Exchange Tenant, EXO, EWS Security change (Fehlervermeidung Security) Microsoft verbessert die Sicherheit von EWS und löst das Problem bei der Kombination von “per Tenant” und “per User” Rechten. Dies erleichtert es insbesondere grossen Unternehmen, Compliance-Vorgaben konsequent durchzusetzen. Ein wesentlicher Grund für diese Änderung ist, dass viele Personen im M365-Portal oder über Graph API Änderungen vornehmen, […]
Abstellung 3G, Schweiz Swisscom 3G, 4G, VoLTE (Voice over LTE) was muss ich beachten? In der Schweiz werden aktuelle Mobilfunkdienste zunehmend auf moderne Netztechnologien umgestellt. Besonders wichtig ist dabei, dass Smartphones VoLTE unterstuetzen. Ohne diese Funktion koennen Telefonie und SMS bei Swisscom nicht mehr wie gewohnt genutzt werden. Bakom schreibt: Ältere Mobiltelefone ohne 4G Technologie […]
In the OLD KB-Number: 982697 MS explains….. The default Behaviour for downloading shared folders can be modified using Group Policy and registry settings. Some of these policies and registry values may have improved the performance of shared folders in earlier versions of Outlook or when the shared folders were located in Exchange Server on-premises mailboxes. […]
Recommendation 16.08.2024 for CVE-2024-38063 and IPV6 There is a patch from 2008-2022+ Servers so use it See following LINK on how to import the older OS patches into WSUS CVE-2024-38063, CVSS 9.8, import free 2008/R2 + 2012R2 into WSUS – www.butsch.ch https://www.butsch.ch/post/cve-2024-38063-cvss-9-8-how-to-import-the-free-2008-2008r2-patch-into-wsus/ If you can’t patch then as least options CAREFULLY consider disabling IPV6 the […]
Problem beim Öffnen eines freigegebenen Kalenders in Outlook Desktop Outlook für Microsoft 365 Workaround ONLY works as long as you don’t close Outlook.exe (Don’t close Outlook after it works until MS solves problem) Der Workaround ist NUR aktiv solange Outlook.exe offen ist (Nicht zumachen bis MS das problem fixt) MS EX814289 Betrifft nur die Office […]
Workaround ONLY works as long as you don’t close Outlook.exe (Don’t close Outlook after it works until MS solves problem) EX814289 Users may be unable to access shared calendars in the Outlook desktop app. Problem opening a shared calendar in Outlook Desktop, Outlook for Microsoft 365 Users who have access to Outlook via Office […]
Trellix ENS 10.7 deletes Windows Defender Update which come from WSUS-Server on German Server 2019 We just did see a false positive on Windows Defender Updates we provide via WSUS with autoaprove on a Windows Server 2019 German with Trellix ENS 10.7 and AMCORE 5554. The file was deleted from C:\Windows\SoftwareDistribution\Download\ Microsoft affected file: […]
Workaround ONLY works as long as you don’t close Outlook.exe (Don’t close Outlook after it works until MS solves problem) EX814289 Users may be unable to access shared calendars in the Outlook desktop app. Users who have access to Outlook on the web or Outlook for Windows (https://www.microsoft.com/store/productId/9NRX63209R7B?ocid=pdpshare) can use this connection method to access […]
Exchange SE (Subscription Edition), Exchange 2019 Nachfolger mit in-place Upgrade | Microsoft hat gerade Release-Informationen und eine Zeitlinie für die Einführung der neuen Exchange SE (Subscription Edition) veröffentlicht. Kunden können weiterhin rein On-Premises oder im Hybridmodus arbeiten, wie es ihren Bedürfnissen entspricht. Neu wird die Exchange SE jedoch ausschliesslich im Abonnementmodell erhältlich sein. […]
Powershell to show and log SMTP Port 25, 465, 2525 after Decomission old Exchange Server When decommissioning an Exchange Server, it’s common to install SMTP/IIS to capture and redirect the failing SMTP sender traffic, allowing us to monitor if there’s still traffic coming to the old Exchange. Below is a PowerShell script that you […]
CRLcheck.exe, Certificate Revocation List Check Tool to automatic verify CRL and OCSP internet reachability of all your EXE files that your client runs. Download 01.01.2026, NEW Release 2.2.0.0 rebuilt for server and small display resolutions like VM’s Version 2.2.0.0 Download from our Server or different software portals: https://www.butsch.ch/wp-content/uploads/tools/crlcheck/latest/crlcheck.7z https://www.softpedia.com/get/Security/Security-Related/Certificate-Revocation-List-Check-Tool.shtml https://www.majorgeeks.com/files/details/certificate_revocation_list_check_tool.html Over the past […]
Microsoft M365 O365 EXO throttles Exchange 2013 in HYBRID Mode, Queue is growing SMTP ERROR: Connecting Exchange server version is out-of-date Since December 2023, Microsoft has been throttling or blocking on-premises Exchange 2013 servers that are in Hybrid Mode, connecting to their cloud environment. Even if 99% of the mailboxes are already in the […]
