CVE-2020-17122 Microsoft Excel Remote Code Execution Vulnerability

What is CVE-2020-17122?

CVE-2020-17122 is a high-severity code injection vulnerability in Microsoft Office, published on 9 Dec 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Microsoft Excel Remote Code Execution Vulnerability

Which versions are affected by CVE-2020-17122?

It affects 3 products.

Products include Microsoft Office, Microsoft Office Web Apps, Microsoft Sharepoint Server.

How do I fix CVE-2020-17122?

No fix has been published for CVE-2020-17122 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2020-17122 being exploited?

There is no known exploitation of CVE-2020-17122 in the wild and no public exploit code.

Other vulnerabilities in Microsoft Office

• CVE-2018-0798 Microsoft Office Memory Corruption Exploited High 8.8
• CVE-2015-1770 Microsoft Office Uninitialized Memory Use Exploited High 8.8
• CVE-2006-2492 Microsoft Word Malformed Object Pointer Exploited High 8.8
• CVE-2018-0802 Microsoft Office Memory Corruption Exploited High 7.8
• CVE-2017-11882 Microsoft Office Memory Corruption Exploited High 7.8

All Microsoft Office vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-mq2j-j89w-pvx3.