CVE-2025-47163 Microsoft SharePoint Server Remote Code Execution Vulnerability

High 8.8 Published Updated

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-2025-47163?

CVE-2025-47163 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-2025-47163?

It affects 2 products.

Products include Microsoft Sharepoint Enterprise Server, Microsoft Sharepoint Server.

How do I fix CVE-2025-47163?

No fix has been published for CVE-2025-47163 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-2025-47163 being exploited?

There is no known exploitation of CVE-2025-47163 in the wild and no public exploit code.

All Microsoft Sharepoint Enterprise Server vulnerabilities

Sources

Also known as GHSA-c4r7-vqgv-hxrw.

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