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Category Archives: Software
Microsoft Teams 26072.519.4556.7438: Right-click bug on desktop
[German]The Microsoft Teams desktop client has been experiencing a bug on both macOS and Windows since the update to build 26072.519.4556.7438 was rolled out. The issue is that right-clicking no longer works in the desktop client. Clipboard operations may need … Continue reading
ESU Extension (Phase 2) for Exchange 2016/2019 and Skype
[German]Microsoft has announced an extension of the Extended Security Update (ESU) program for certain legacy software. This includes Microsoft Exchange 2016/2019 and Skype for Business Server, for which ESU "Period 2" is now being launched. This means that organizations can … Continue reading
Adobe Reader: Emergency patch for 0-day vulnerability CVE-2026-34621
[German]A few hours ago, I reported on a zero-day vulnerability in Adobe Reader. Simply opening a PDF file can be enough to take control of the system. Adobe has now confirmed the vulnerability (CVE-2026-34621) and released a security update to … Continue reading
Posted in Security, Software, Update
Tagged Adobe Reader, Security, Software, Update
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Malware: Website hosting CPUID, HWMonitor, CPU-Z, etc., hacked
[German]Warning to users who use tools such as CPUID, HWMonitor, CPU-Z, etc. and updated it recently (between April 9, and April 10, 2026. The website where these tools were hosted and offered for download has fallen victim to a supply … Continue reading
Veeam Backup Issue with MS 365 Mailboxes due to the EWS retirement in March 2026
[German]A quick note to blog readers who use Veeam Backup 365. Back in November 2025, there were already issues with the integration between Veeam Backup and Microsoft 365 mailboxes. Now, a reader has once again reported the Veeam Backup issue … 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 ...
Vulnerability CVE-2026-3055 in Citrix NetScaler ADC and Gateway is being exploited
On March 24, 2026, I warned of two critical vulnerabilities in the Citrix products mentioned in the post Critical vulnerabilities in Citrix NetScaler ADC and Gateway (March 2026). Now attacks exploiting one of these vulnerabilities are being observed in the … Continue reading
Microsoft Outlook Classic: Workaround for crashes caused by the Teams Meeting add-in
[German]There is an issue with Outlook Classic where the client crashes on startup due to a faulty Microsoft Teams Meeting add-in. As far as I know, Microsoft is still investigating this problem. Below, I have compiled some workarounds for those … Continue reading
Critical vulnerabilities in Citrix NetScaler ADC and Gateway (March 2026)
[German]Citrix has issued a warning about several security vulnerabilities classified as critical in its Citrix Gateway and Citrix Netscaler ADC. CERT Bund has also published a corresponding advisory. Citrix has released firmware updates to address these vulnerabilities.
Windchill & ZeroPLM 0-day vulnerabilities
[German]The Windchill and ZeroPLM software systems contain critical vulnerabilities (CVS Index 10.0) that companies using these products should have been aware of since the weekend. These vulnerabilities have prompted various German state criminal investigation offices to send police officers to … Continue reading
Ubiquiti UniFi Network Application Vulnerabilities (CVE-2026-22557, CVE-2026-22558)
[German]Two critical vulnerabilities have recently been disclosed in the Ubiquiti UniFi Network Application. Vulnerability CVE-2026-22557 has a CVSS score of 10.0 and can be exploited without authentication to take over an account. CVE-2026-22558 has a CVSS score of 7.7 and … Continue reading