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Category Archives: Software
Over 28,000 unpatched hybrid Exchange instances (CVE-2025-53786) still online
[German]Microsoft Exchange Server hybrid configurations are vulnerable to the elevation of privilege vulnerability CVE-2025-53786. Over 28,000 instances are still unpatched. The US CISA has given authorities until Monday, August 11, 2025, to patch the vulnerability. Here is an overview
Warning of attacks on SonicWall firewalls (SSL VPNs)
[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 … Continue reading
Microsoft Exchange Server Hybrid at risk by CVE-2025-53786
[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 … Continue reading
Critical vulnerabilities (CVE-2025-54948, CVE-2025-54987) in Trend Micro Apex One
[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, … Continue reading
Posted in Security, Software, Windows
Tagged Security, Software, Trend Micro, Update
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New insights on SharePoint Gate: Microsoft uses employees from China for maintenance
[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 … Continue reading
Why ISL Online: Critical factors when choosing a remote desktop solution
[Sponsored Post]In the rapidly evolving IT world, choosing the right remote desktop software is critical for organizations that value security, ease of use and reliability. One provider of secure remote access that has been on the market since 2001 is ISL Online, which presents some considerations for choosing such software below. More ...
Microsoft investigates whether SharePoint 0-day was leaked to hackers in advance
[German]Did suspected Chinese hackers gain access to internal descriptions of zero-day vulnerabilities in Microsoft SharePoint Server before they were exploited last weekend? Microsoft is investigating whether there was a leak in internal systems where such information is stored.
Comparison of Microsoft Defender for Office 365 and third-party ICES software
[German]How does Microsoft Defender actually compare to third-party ICES solutions for protecting Microsoft Office 365? ICES solutions can be integrated into Microsoft Defender for Office 365. I recently came across an overview from Microsoft with a comparison.
Check Windows for outdated libcurl libraries in programs
[German]I mentioned this before in my blog: Microsoft often ships the cURL library with outdated versions that have security vulnerabilities. Software packages also come with ancient libcurl files. How can I check whether there are any legacy issues lurking on … Continue reading
Sharepoint Server 0-Day vulnerability: over 400 victims, Warlock ransomware infections
[German]The extent of the observed wave of attacks on 0-day vulnerabilities in Microsoft SharePoint is slowly becoming apparent. Microsoft has now released emergency updates for SharePoint Server. However, it is now known that over 400 organizations have probably been compromised. … Continue reading
Exchange 2016/2019 and Skype 2015/2019 get 6 months ESU updates
[German]A short addendum that may be of interest to administrators of Microsoft Exchange Server 2016/2019 and Microsoft Skye for Business 2015 and 2019. These software versions were actually due to be removed from support on October 14, 2025. Anyone who … Continue reading
Posted in Security, Software, Update
Tagged Exchange 2016/2019, Security, Skype, Update
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