CVE-2021-42294 Microsoft SharePoint Server Remote Code Execution Vulnerability
Attackers can execute arbitrary code on Microsoft SharePoint Server, requiring immediate patching by administrators.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-42294?
CVE-2021-42294 is a high-severity code injection vulnerability in Microsoft Sharepoint Enterprise Server, published on 15 Dec 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Microsoft SharePoint Server Remote Code Execution Vulnerability
Which versions are affected by CVE-2021-42294?
It affects 3 products.
Products include Microsoft Sharepoint Enterprise Server, Microsoft Sharepoint Foundation, Microsoft Sharepoint Server.
How do I fix CVE-2021-42294?
No fix has been published for CVE-2021-42294 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-2021-42294 being exploited?
There is no known exploitation of CVE-2021-42294 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Sharepoint Enterprise Server
- CVE-2019-0604 Microsoft SharePoint Remote Code Execution
- CVE-2023-24955 Microsoft SharePoint Server Code Injection
- CVE-2025-49706 Microsoft SharePoint Improper Authentication
- CVE-2020-1210 Microsoft SharePoint Remote Code Execution Vulnerability
- CVE-2020-1595 Microsoft SharePoint Remote Code Execution Vulnerability
Sources
Also known as GHSA-xp97-f35x-xjmv.