Tag Archives: Exchange

Security update for Exchange Server 2013-2019 (Nov. 2020)

Posted on 2020-11-19 by guenni

[German]Short addition to a topic, which is already some days here on the agenda. Microsoft has also released security updates for Exchange Server 2013 to 2019 on November 10, 2020.  Advertising

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Still Exchange servers unpatched for CVE-2020-0688 (Nov. 2020)

Posted on 2020-11-18 by guenni

[German]Just a brief note to administrators of Microsoft Exchange servers: Did you patch them against the CVE-2020-0688 remote execution vulnerability? German CERT-Bund has been warning for weeks that numerous German Exchange servers accessible via the Internet are still vulnerable. I … Continue reading →

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Exchange Online service disruption? (August 11,-14, 2020)

Posted on 2020-08-14 by guenni

[German]Since 11.8.2020 Microsoft has been experiencing a disruption in Exchange Online service. The service is occasionally disrupted in sub-functions (login, access). Blog reader Andreas P. has provided me with some information from the Dashboard for Administrators. Advertising

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Fix for Exchange/iOS Outlook app ‘birthday’ bug

Posted on 2020-04-09 by guenni

[German]Finally, Microsoft tries to fix an annoying bug in the iOS Outlook app, which in connection with Exchange servers displayed birthdays one day too early. The bug has been there for nearly than a decade. Advertising

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Exchange Server: 80% not patched against CVE-2020-0688

Posted on 2020-04-08 by guenni

[German]Very nasty: A patch against the Remote Code Execution (RCE) vulnerability CVE-2020-0688 in Microsoft’s Exchange Server has been available since February 2020. But 80% of publicly available Microsoft Exchange Servers are not patched. However, the advice ‘patch your server’ is … Continue reading →

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Microsoft recommends disabling SMBv1 on Exchange

Posted on 2020-02-13 by guenni

[German]Microsoft recommends that administrators of Exchange Servers disable the SMBv1 protocol on these machines for security reasons. Here are a few details about that recommendation. Advertising

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Exchange Online/Access failure (01/23/2020)

Posted on 2020-01-23 by guenni

[German]At Microsoft there seems to be a disruption in cloud services. Exchange Online (and according to the title of the status report Access) are probably affected by this, as I just learned from blog reader Andreas P. (thanks for that). … Continue reading →

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Exchange 2016/2019 quarterly Updates

Posted on 2019-12-23 by guenni

Microsoft released the quarterly update for Exchange 2016 and Exchange 2019 a few days ago. These updates include fixes for issues reported by customers and all previously released security updates. Setup now requires .NET Framework 4.8. Microsoft released details on … Continue reading →

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Microsoft Security Advisory ADV190007 for Exchange Server

Posted on 2019-02-07 by guenni

[German]There is a “PrivExchange” vulnerability in all Microsoft Exchange server versions. Now Microsoft published the new Security Advisory ADV190007 on February 5, 2019. Advertising

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AD and Exchange Server vulnerable via EWS API

Posted on 2019-01-26 by guenni

Another brief information for Exchange administrators. There is an unpatched vulnerability (CVE-2018-8581) on all Exchange Server versions that could be used by remote attackers to take over the machine. Advertising

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