Social networks
Awards
MVP:
2013 – 2016
WIMVP:
2017 – 2020
Category Archives: Software
Exchange Server 2019: 2025 H1 Cumulative Update (CU15) released
[German]Microsoft has released the 2025 H1 Cumulative Update for Exchange Server 2019 on February 10, 2024. The CU15 is the last cumulative update for this Exchange version, which will then be withdrawn from support in October 2025. The CU15 contains … Continue reading
Are contacts are suddenly deleted in Microsoft 365?
[German]I have recently received an information from a blog reader who is struggling with the fact that some of his users' Microsoft 365 accounts are sporadically deleting contacts.
Attackers use ASP. NET key to spread malware
[German]In December 2024, the Microsoft Threat Intelligence team observed limited activity from an unknown attacker using a publicly available, static ASP. NET machine key to inject malicious code and deploy the Godzilla post-exploitation framework.
Microsoft 365: Annoying advertising for Python in Excel —
[German]Microsoft just can't help itself and is forcing its business customers in Microsoft 365 to advertise Python in Excel. An administrator among the blog readers pointed this out to me (thanks for that).
Critical vulnerability CVE-2025-23114 in Veeam Updater
[German]A critical vulnerability CVE-2025-23114 has been reported in the Veeam Updater. This vulnerability could be used to carry out man in the middle attacks. This affects various products from the provider. Veeam has published corresponding security updates to close the … 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 ...
Vulnerabilities in Progress Kemp LoadMaster (Load-Balancer) Jan 2025
[German]A short note for administrators who use the load balancer LoadMaster from Progress Kemp. On February 5, 2025, a whole series of vulnerabilities affecting older versions of the software became public. The provider has released patches for these, some of … Continue reading
HP Universal Print Driver Series (PCL 6) vulnerabilities
[German]There are vulnerabilities in older HP Universal Print printer drivers (PCL 6 and PostScript) for Windows. The background to this is that these printer drivers use the libjpeg, libpng, OpenSSL and zlib libraries and may have (older) vulnerabilities. HP has … Continue reading
Microsoft Exchange: When is CU 15 coming? And other news
[German]Microsoft Exchange 2019 administrators have been asking themselves when CU 15, which has been overdue since 2024, will finally be released. Microsoft has now commented on this in a tech community article and also announced further innovations. Exchange 2019 and … Continue reading
TeamViewer client: Vulnerability CVE-2025-0065
[German]A security vulnerability classified as high has become known in the TeamViewer client. In a security advisory dated January 28, 2025, the manufacturer warns of the vulnerability CVE-2025-0065 in its client and recommends updating to version 15.62.
Exchange Emergency Mitigation Service for patched systems only
[German]Since September 2021, Microsoft has provided the Exchange Emergency Mitigation Service (EEMS) for Exchange Server to improve Exchange protection. However, this service only works on systems that are up to date. Microsoft explicitly pointed this out at the end of … Continue reading