CVE-2021-34501: Microsoft Excel XLS File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
First published: Tue Jul 13 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 Excel 2013 RT | ||
| Microsoft Excel 2013 | ||
| Microsoft Office 2019 for Mac | ||
| Microsoft Excel 2016 | ||
| Microsoft Excel 2016 | ||
| Microsoft 365 Apps for Enterprise | ||
| Microsoft Excel 2013 | ||
| Microsoft Office 2019 for 64-bit editions | ||
| Microsoft Office Online Server | ||
| Microsoft Office 2019 for 32-bit editions | ||
| Microsoft 365 Apps | ||
| Microsoft Excel | =2013-sp1 | |
| Microsoft Excel | =2013-sp1 | |
| Microsoft Excel | =2016 | |
| Microsoft Office | =2019 | |
| Microsoft Office | =2019 | |
| Microsoft Office Online Server |
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Reference Links
Frequently Asked Questions
What is CVE-2021-34501?
CVE-2021-34501 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Microsoft Excel.
How severe is CVE-2021-34501?
CVE-2021-34501 has a severity score of 8.8, which is considered high.
What software is affected by CVE-2021-34501?
Microsoft Excel 2016, Microsoft Excel 2013, Microsoft Office Online Server, Microsoft 365 Apps for Enterprise, Microsoft Excel 2013 RT, Microsoft Office 2019 for Mac, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editions, and Microsoft 365 Apps for Enterprise (x86) are affected by CVE-2021-34501.
How do I fix CVE-2021-34501 on Microsoft Excel 2016?
To fix CVE-2021-34501 on Microsoft Excel 2016, you can apply the patch provided by Microsoft. Please refer to the following URL for more information: [link](https://www.microsoft.com/downloads/details.aspx?familyid=896cd62a-4be0-4156-9ba1-b5a7e9cf4e3e)
How do I fix CVE-2021-34501 on Microsoft Excel 2013?
To fix CVE-2021-34501 on Microsoft Excel 2013, you can apply the patch provided by Microsoft. Please refer to the following URL for more information: [link](https://www.microsoft.com/downloads/details.aspx?familyid=db0dadc7-f5ad-446c-a614-82f53cd238d4)
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