CVE-2021-38655: Microsoft Excel XLS File Parsing Use-After-Free Remote Code Execution Vulnerability
First published: Tue Sep 14 2021(Updated: )
Microsoft Excel Remote Code Execution Vulnerability
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Excel | ||
| Microsoft 365 Apps for Enterprise | ||
| Microsoft Office Web Apps Server 2013 | ||
| Microsoft Office Online Server | ||
| Microsoft Excel 2013 | ||
| Microsoft Excel 2016 | ||
| Microsoft 365 Apps for Enterprise | ||
| Microsoft Excel 2013 RT | ||
| Microsoft Excel 2016 | ||
| Microsoft Office 2019 for 64-bit editions | ||
| Microsoft Office 2019 for Mac | ||
| Microsoft Office 2019 for 32-bit editions | ||
| Microsoft Excel 2013 | ||
| Microsoft 365 Apps | ||
| Microsoft Excel | =2013 | |
| Microsoft Excel | =2013-sp1 | |
| Microsoft Excel | =2016 | |
| Microsoft Office | =2019 | |
| Microsoft Office | =2019 | |
| Microsoft Office Online Server | ||
| Microsoft Office Web Apps | =2013-sp1 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-38655?
CVE-2021-38655 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Microsoft Excel.
How severe is the CVE-2021-38655 vulnerability?
The severity of the CVE-2021-38655 vulnerability is rated as high, with a severity value of 7.8.
Which software is affected by CVE-2021-38655?
CVE-2021-38655 affects Microsoft Excel versions 2013, 2013-sp1, 2016, Office Web Apps Server 2013, 365 Apps for Enterprise (x86_64 and x86), Office 2019 for 32-bit and 64-bit editions, and Microsoft Office LTSC for Mac 2021.
How can I fix the CVE-2021-38655 vulnerability?
To fix the CVE-2021-38655 vulnerability, apply the necessary patches or updates provided by Microsoft for the affected software versions.
Where can I find more information about CVE-2021-38655?
More information about CVE-2021-38655 can be found on the Microsoft Security Response Center (MSRC) website and the Zero Day Initiative (ZDI) website.
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