CVE-2021-31176: Microsoft Excel XLS File Parsing Use-After-Free Remote Code Execution Vulnerability
First published: Tue May 11 2021(Updated: )
Microsoft Office Remote Code Execution Vulnerability
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft 365 Apps for Enterprise | ||
| Microsoft 365 Apps for Enterprise | ||
| Microsoft Office 2019 for 32-bit editions | ||
| Microsoft Office 2013 RT | ||
| Microsoft Office 2019 for 64-bit editions | ||
| Microsoft Excel | ||
| Microsoft Office 2013 | ||
| Microsoft Office 2016 | ||
| Microsoft Office 2016 | ||
| Microsoft Office 2013 | ||
| Microsoft 365 Apps | ||
| 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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Reference Links
Frequently Asked Questions
What is CVE-2021-31176?
CVE-2021-31176 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Microsoft Excel.
How can the CVE-2021-31176 vulnerability be exploited?
The CVE-2021-31176 vulnerability can be exploited by remote attackers when the target visits a malicious page or opens a malicious XLS file.
Is user interaction required to exploit the CVE-2021-31176 vulnerability?
Yes, user interaction is required to exploit the CVE-2021-31176 vulnerability.
What is the severity of CVE-2021-31176?
The severity of CVE-2021-31176 is high (7.8).
How to fix the CVE-2021-31176 vulnerability?
To fix the CVE-2021-31176 vulnerability, users should apply the security updates provided by Microsoft for the affected software versions.
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- version/microsoft office/2016
- version/microsoft office/2019
- canonical/microsoft office online server
- canonical/microsoft office web apps server
- version/microsoft office web apps server/2013-sp1
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- canonical/microsoft office 2019 for 64-bit editions
- canonical/microsoft office 2019 for 32-bit editions
- canonical/microsoft office 2013