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Tag Archives: Excel
Office trouble: Excel calculation issues, and Outlook starts in safe mode (January 2023)
[German]In this post I would like to put online a small collection of problems or inconsistencies around Microsoft Office. The problems have come to my attention through the readership in the last few days. Possibly they are isolated cases, but … Continue reading
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Issue with Excel 2013 Update KB5002242 (August 9, 2022)
[German]Microsoft has released security update KB5002242 for Excel 2013 on August 9, 2022 (Patchday). The patch is supposed to eliminate both a vulnerability and a bug in this Excel version. However, there is feedback from readers on the blog that … Continue reading
Posted in issue, Office, Security, Update
Tagged Excel, Patchday 8.2022, Problem, Security, Update
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Office 365 version 2206.15330.20196: Excel bug prevents display of cell contents (OP396850)
[German]Users who have upgraded Microsoft Office 365 as a Click-2-Run variant to version 2206.15330.20196 (released June 29, 2022) report a strange bug. In Microsoft Excel, the contents of cells (rows and/or columns)in a spreadsheet are no longer displayed, but are … Continue reading
Malicious CSV files can install BazarBackdoor
[German]Cyber criminals have found a way to abuse text-based CSV files in order to install BazarBackdoor malware on victims' systems. Security researchers probably came across this fact while monitoring a phishing campaign. The culprit is the ability to access the … Continue reading
Microsoft disables Excel 4.0 macro support by default
[German]Good news in terms of security and Office, because Microsoft finally plugs a gateway for malware by disabling the default support for Excel 4.0 macros. This mitigates an announced and long overdue vulnerability. Advertising
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Excel XLL addins abused for malware installation
[German]Here is another security topic, dealing with attacks via Excel XLL addins ein. This attack method has been known since July 2021 and is used by malware groups. I just came across a case where this approach was used to … Continue reading
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Microsoft Security Update Releases (Feb. 17, 2021)
[German]Small addendum from this week: Microsoft has published a summary of changed security descriptions for Excel RCE vulnerabilities and also points to revised servicing stack updates. Here is a brief overview of the info I received via email on 2/18/2021. … Continue reading
Posted in Office, Security, Software, Windows
Tagged Excel, Patchday 2.2021, Security, SSU, Windows
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Windows 10: Excel window lags during dragging
[German]Today still a strange issue, which a blog reader reported by mail. Microsoft Excel 2016 lags under Windows 10 Version 1709/1809, when a window with an open table is dragged on the desktop. Advertising
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Office 365 C2R: Excel ODBC driver missing
[German]Here's a little tip for Office 365 administrators: Click-2-Run does not install any ODBC drivers for Microsoft Excel. Blog reader Karl Ebbing-Westerhaus (@tweet_alqama) has found a solution to the problem. Advertising
Excel and the Power Query vulnerability
[German]Security researchers pointed out a few days ago a potential vulnerability in Microsoft Excel Power Query add-in that could allow a new attack vector. Office security mechanisms can be bypassed and the user does not need to actively intervene to … Continue reading