CVE-2020-1594: Microsoft Excel Remote Code Execution Vulnerability
First published: Fri Sep 11 2020(Updated: )
<p>A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.</p> <p>Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Excel. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) containing a specially crafted file designed to exploit the vulnerability. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.</p> <p>The security update addresses the vulnerability by correcting how Microsoft Excel handles objects in memory.</p>
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft 365 Apps | ||
| Microsoft Excel | =2010-sp2 | |
| Microsoft Excel | =2013-sp1 | |
| Microsoft Excel | =2013-sp1 | |
| Microsoft Excel | =2016 | |
| Microsoft Office | =2019 |
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Frequently Asked Questions
What is CVE-2020-1594?
CVE-2020-1594 is a remote code execution vulnerability in Microsoft Excel software.
How severe is CVE-2020-1594?
CVE-2020-1594 has a severity value of 8.8, which is classified as high.
Which software is affected by CVE-2020-1594?
Microsoft Office LTSC for Mac 2021, Microsoft Excel 2010 SP2, Microsoft Excel 2013 SP1, Microsoft Excel 2016, and Microsoft Office 2019 are affected by CVE-2020-1594.
What is the vulnerability name for CVE-2020-1594?
The vulnerability name for CVE-2020-1594 is 'Microsoft Excel Remote Code Execution Vulnerability'.
Where can I find more information about CVE-2020-1594?
You can find more information about CVE-2020-1594 at this [link](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1594).
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