Tag Archives: Excel

Excel 2016 can no longer load add-ins after Nov. 2024 update KB5002653

Posted on 2024-11-14 by guenni

[German]On November 12, 2024, Microsoft released the security update KB5002653 for Microsoft Excel 2016 (MSI version) to close various vulnerabilities. After installing the update, add-ins can no longer be loaded.

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Office trouble: Excel calculation issues, and Outlook starts in safe mode (January 2023)

Posted on 2023-01-23 by guenni

[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)

Posted on 2022-08-10 by guenni

[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 , , , , | 14 Comments

Office 365 version 2206.15330.20196: Excel bug prevents display of cell contents (OP396850)

Posted on 2022-07-05 by guenni

[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 →

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Malicious CSV files can install BazarBackdoor

Posted on 2022-02-02 by guenni

[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 →

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Microsoft disables Excel 4.0 macro support by default

Posted on 2022-01-22 by guenni

[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.

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Excel XLL addins abused for malware installation

Posted on 2021-12-08 by guenni

[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)

Posted on 2021-02-19 by guenni

[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.

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Windows 10: Excel window lags during dragging

Posted on 2019-08-01 by guenni

[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.

Posted in issue, Office | Tagged , , | 20 Comments

Office 365 C2R: Excel ODBC driver missing

Posted on 2019-07-06 by guenni

[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.

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