7.8
CWE
416
Advisory Published
Updated
Advisory Published

CVE-2021-28454: Microsoft Excel XLS File Parsing Use-After-Free Remote Code Execution Vulnerability

First published: Tue Apr 13 2021(Updated: )

Microsoft Excel Remote Code Execution Vulnerability

Credit: secure@microsoft.com secure@microsoft.com

Affected SoftwareAffected VersionHow to fix
Microsoft Excel
Microsoft Office 2019 for 32-bit editions
Microsoft Office 2016
Microsoft Excel 2016
Microsoft Office 2013 RT
Microsoft Excel 2013 RT
Microsoft Office 2013
Microsoft Office Web Apps Server 2013
Microsoft Excel 2010
Microsoft Office 2010
Microsoft Office Online Server
Microsoft Office 2013
Microsoft Excel 2016
Microsoft Excel 2010
Microsoft Office 2016
Microsoft Excel 2013
Microsoft 365 Apps for Enterprise
Microsoft 365 Apps for Enterprise
Microsoft Excel 2013
Microsoft Office 2010
Microsoft Office 2019 for 64-bit editions
Microsoft 365 Apps
Microsoft Office=2010-sp2
Microsoft Office=2013-sp1
Microsoft Office=2013-sp1
Microsoft Office=2016
Microsoft Office=2019
Microsoft Office Online Server
Microsoft Office Web Apps Server=2013-sp1

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Frequently Asked Questions

  • What is CVE-2021-28454?

    CVE-2021-28454 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Microsoft Excel.

  • How can the CVE-2021-28454 vulnerability be exploited?

    The CVE-2021-28454 vulnerability can be exploited by visiting a malicious page or opening a malicious file.

  • What is the severity of CVE-2021-28454?

    CVE-2021-28454 has a severity rating of 7.8, which is considered high.

  • Which versions of Microsoft Excel are affected by CVE-2021-28454?

    Microsoft Excel 2013, 2016, and Excel in Office 365 Apps for Enterprise are affected by CVE-2021-28454.

  • How can I fix CVE-2021-28454?

    To fix CVE-2021-28454, apply the available patches and updates provided by Microsoft for the affected versions of Excel.

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