[German]Another brief summary of security vulnerabilities in devices. At the end of July 2025, Lenovo notebooks reported vulnerabilities that could be closed via UEFI updates. And in Dell notebooks, a vulnerability called ReVault was found in the ControlVault3 firmware for Broadcom chips. NVIDIA GPUs are vulnerable to an attack called GPUHammer and should be protected against it via ECC testing.
[German]On August 8, 2025, Microsoft updated its template files (Administrative Templates, ADMX/ADML files) for Microsoft Office 2016 and higher to version 5516.1000. The template files contain the group policies for managing Microsoft Office.
[German]I'm going to quickly mention something I just came across here in the blog. The download section of the Microsoft website does not offer ADMX templates for Microsoft Office for download – an error message appears. Here is my (changing and supplementary) summary. Addendum: The broken link has been fixed and there is a new ADMX version.
[German]Someone among the blog readership who relies on SonicWall. There have been reports for days that attacks on SonicWall firewalls are being observed. It seems to relate to the SSL VPN function of the Gen 7 SonicWall firewalls. It is unclear whether an unknown vulnerability is being exploited.
[German]Another note for administrators of Microsoft Exchange Server hybrid configurations. Microsoft points out that these configurations are at risk from an Elevation of Privilege vulnerability (CVE-2025-53786). However, there is a hotfix to eliminate this vulnerability in these hybrid configurations and instructions to secure the installation.
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[German]Quick survey for administrators among my blog readers: Is there a problem with OneDrive, and how are you dealing with it? In July 2025, Microsoft began allowing OneDrive Personal users to synchronize OneDrive for Business as well. How are you dealing with this issue, which could pose a security problem?
[German]Brief information for administrators who use the Trend Micro Apex One security solution under Windows. The manufacturer has issued a security notice about a critical vulnerability that probably affects all versions and is also under attack. There is a Fix, and an update is advised for Mid August 2025.
[German]Is it a surprise? No, it's not a surprise, but rather to be expected. The Recall spyware feature that Microsoft is pushing onto Windows systems continues to collect sensitive information such as credit card details and passwords. And this despite Microsoft's claims that this is not the case.
[German]Since the SharePoint disaster in July 2025, in which vulnerabilities were exploited, there have been new revelations almost every day. It has been speculated that suspected Chinese hackers were able to access internal descriptions of zero-day vulnerabilities in Microsoft SharePoint Server in advance. Now it is said that Microsoft employed staff from China to maintain SharePoint. A brief update on the latest developments.
[German]Security researchers from Nextron Research have identified a previously undocumented PAM-based backdoor while searching for unknown threats with YARA rules. This backdoor, dubbed Plague by the security researchers, can be persistently installed on Linux systems by attackers and grants persistent SSH access without being detected by security systems.
MVP:
2013 – 2016
WIMVP:
2017 – 2020
