CVE-2025-47166 Microsoft SharePoint Server Remote Code Execution Vulnerability
An authorized attacker can execute arbitrary code remotely via unsafe deserialization in Microsoft SharePoint Server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-47166?
CVE-2025-47166 is a high-severity unsafe deserialization vulnerability in Microsoft Sharepoint Enterprise Server, published on 10 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Weakness: CWE-502
Which versions are affected by CVE-2025-47166?
It affects 2 products.
Products include Microsoft Sharepoint Enterprise Server, Microsoft Sharepoint Server.
How do I fix CVE-2025-47166?
No fix has been published for CVE-2025-47166 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2025-47166 being exploited?
There is no known exploitation of CVE-2025-47166 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry.
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-jvcx-4h9f-wx33.