Tag Archives: Windows

April 2025 patch for Windows Symlink vulnerability CVE-2025-21204 tears new security issue

Posted on 2025-04-23 by guenni

[German]On April 8/9, 2025, Microsoft rolled out numerous security updates for the supported Windows versions, which were also intended to close the symlink vulnerability CVE-2025-21204. This made waves due to the Inetpub folder being patched on all Windows systems. It … Continue reading →

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Windows NTLM vulnerability CVE-2025-24054 is being exploited

Posted on 2025-04-22 by guenni

[German]On March 11, 2025, Microsoft also publicly documented and patched the vulnerability CVE-2025-24054 contained in Windows. The vulnerability enables NTLM spoofing, but was classified by Microsoft as "difficult to exploit". Last week, Checkpoint pointed out that cybercriminals are attacking systems … Continue reading →

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Deprecated: Virtualization-based security (VBS enclaves) before Windows 11 24H2; Windows UWP Map Control/API

Posted on 2025-04-21 by guenni

[German]Microsoft has recently discontinued virtualization-based security (VBS enclaves) as a feature for older Windows versions prior to Windows 11 24H2 and Windows Server 2025. and declared it as deprecated. Also Windows UWP Maps and Windows Maps Platform APIs have already … Continue reading →

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PDFCreator from pdfforge no longer free for corporate environments from version 6.0.0

Posted on 2025-04-20 by guenni

[German]Today a short note for administrators in corporate environments who use the PDFCreator from pdfforge on their Windows clients. The developer has made a change to the software for creating PDF documents. As a result, this software can no longer … Continue reading →

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Windows: Mysterious folder C:\Virus; Trend Micro involved?

Posted on 2025-04-16 by guenni

[German]I am posting a very unusual observation by an administrator among the blog readers here on the blog. He noticed that an ominous folder c:\virus was "suddenly" created on his clients on the system drive. The cause has not yet … Continue reading →

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Windows 10: Updates KB5057589, KB5055674, KB5056474, KB5055769, KB5055768, KB5055770

Posted on 2025-04-15 by guenni

[German]An addendum from April 8, 2025: Microsoft also released various updates for the Windows RE environment for Windows 10 on this date. Further updates for Windows 10 make improvements to the Windows Setup binaries or all files used by Setup … Continue reading →

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Windows: Autopilot error on new 2025 PC with TPM

Posted on 2025-04-15 by guenni

If anyone is using Windows Autopilot and getting a TPM check error on new 2025 PCs, this is a known bug that Microsoft is working on.

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Intune Network Endpoint Update for Windows, Mac, Android

Posted on 2025-04-14 by guenni

Quick reminder for administrators who manage devices via Microsoft Intune. Microsoft is changing the URLs for the endpoint with Windows, Mac and Android. Adjustments are required by the end of April 2025.

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Windows PCs at risk from WhatsApp flaw (CVE-2025-30401)

Posted on 2025-04-12 by guenni

[German]A vulnerability in WhatsApp for Windows (before version 2.2450.6) puts Windows computers at risk. The vulnerability could allow attackers to execute malicious code via WhatsApp message attachments on Windows.

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Windows: Kerberos PAC Validation Protocol in enforcement mode since April 8, 2025

Posted on 2025-04-11 by guenni

[German]Quick reminder for administrators, in case anyone hasn't noticed. On the April 2025 patchday (8.4.2025), the "enforcement phase" for the hardening of the Kerberos protocol regarding the Kerberos PAC Validation Protocol came into force. This removed certain modes that could … Continue reading →

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