Tag Archives: Outlook

Calendar invitation in Outlook can reveal password (via CVE-2023-35636)

[German]Small addendum to the December 2023 patchday, during which an information disclosure vulnerability (CVE-2023-35636) was also closed. It has now become known that even the acceptance of a calendar invitation by a user can reveal their password. While this vulnerability … Continue reading

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New Outlook app: "Monitoring and surveillance tool for targeted advertising"

[German]The new Microsoft Outlook app is a data protection disaster and a GDPR no-go. Following the revelation that the app transfers access data for accounts and content to Microsoft's cloud, mail vendor Proton took a closer look at the app. … Continue reading

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How to find weak passwords in Active Directory and eliminate them with PowerShell

[Sponsored Post]Weak or compromised passwords are a known gateway for attackers. If you are able to identify which users in Active Directory (AD) are threatened by this, then PowerShell can help to remedy it. However, PowerShell scripts cannot eliminate basic AD deficits, other tools are needed for this. More ...

New Outlook client: Extended test in January 2024 for enterprises

[German]Microsoft plans to expand the test of the new Outlook app in the corporate environment in January 2024. The option to switch will be offered in the "semi-annual channel" of Microsoft Office 365. Administrators who do not wish to switch … Continue reading

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Office update KB5002500 from January 2, 2023 fixes OneNote 2016 sync problem

[German]On January 2, 2023 (first Tuesday of the month), Microsoft released a non-security update for Microsoft Office 2016. It is the update KB5002500, which is supposed to fix a synchronization problem in Microsoft OneNote 2016. Here is some information about … Continue reading

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New Outlook for Windows 11: Adding of business accounts denied due to missing licensing

[German]There is a strange story that users of the new Outlook client under Windows 11 have already encountered. The new Outlook client refuses to add additional mailboxes if you do not have a "corresponding license" (e.g. Exchange Online Plan 1). … Continue reading

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Denial of Service vulnerability CVE-2022-44684 in Windows Local Session Manager (LSM)

[German]A brief security information. Shortly before Christmas, a warning popped up about a Denial of Service vulnerability in the Windows Local Session Manager (LSM). However, this DoS vulnerability with the CVE identifier CVE-2022-44684 is quite "strange". The identifier indicates that … Continue reading

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Outlook fails when sending mail with non-delivery report (Error 0x80040305)

[German]Microsoft has confirmed a problem in Outlook which leads to the mail dispatch being canceled. This may be due to the fact that the user has created a large number of folders in the mailbox. In the event of an … Continue reading

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Microsoft identifies Russian attacker exploiting CVE-2023-23397 in Outlook to access Exchange accounts

[German]CVE-2023-23397 is a vulnerability in Microsoft Outlook that could be exploited in conjunction with Microsoft Exchange servers, which was closed with security updates in March 2023. Microsoft has now identified an attacker based in Russia who is actively exploiting CVE-2023-23397 … Continue reading

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Outlook 2019/2021: Microsoft shares workaround for "Send from" crash

[German]Since a few days now (November 21, 2023), users of Outlook 2019 and 2021 have been complaining that they can no longer send emails via Outlook. Outlook 2019 crashes as soon as "Send from" is selected in the mail client … Continue reading

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Outlook 2019: Crash when clicking "Send to"; and Outlook 365 deletes rules

[German]I'd like to summarize two topics related to Outlook that readers pointed out to me yesterday. It seems that a bug has crept into Outlook 2019 that causes the program to crash when "Send from" is selected. And another reader … Continue reading

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