CVE-2020-17118 Microsoft SharePoint Remote Code Execution Vulnerability

High 8.1 Published Updated

Attackers can execute arbitrary code on Microsoft SharePoint servers, requiring immediate patching by administrators.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2020-17118?

CVE-2020-17118 is a high-severity code injection vulnerability in Microsoft Sharepoint Foundation, published on 9 Dec 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Microsoft SharePoint Remote Code Execution Vulnerability

Which versions are affected by CVE-2020-17118?

It affects 2 products.

Products include Microsoft Sharepoint Foundation, Microsoft Sharepoint Server.

How do I fix CVE-2020-17118?

No fix has been published for CVE-2020-17118 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-2020-17118 being exploited?

There is no known exploitation of CVE-2020-17118 in the wild and no public exploit code.

All Microsoft Sharepoint Foundation vulnerabilities

Sources

Also known as GHSA-9p83-qxxf-6fm5.

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