What is the severity of CVE-2025-30378?

CVE-2025-30378 is rated as a critical vulnerability due to its potential for remote code execution.

How do I fix CVE-2025-30378?

To fix CVE-2025-30378, you should apply the latest security updates provided by Microsoft for your specific SharePoint version.

Which versions of SharePoint are affected by CVE-2025-30378?

CVE-2025-30378 affects Microsoft SharePoint Enterprise Server 2016, SharePoint Server 2019, and SharePoint Server Subscription Edition.

What type of attack is possible with CVE-2025-30378?

CVE-2025-30378 allows an unauthorized attacker to execute local code through deserialization of untrusted data.

Is authentication required to exploit CVE-2025-30378?

No, CVE-2025-30378 can be exploited without authentication, making it particularly dangerous.

Vulnerability/
CVE-2025-30378

high

CWE

502

13/5/2025

14/5/2025

CVE-2025-30378: Microsoft SharePoint Server Remote Code Execution Vulnerability

First published: Tue May 13 2025(Updated: )

<p>Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.</p>

Credit: secure@microsoft.com

Affected Software	Affected Version	How to fix
Microsoft SharePoint Enterprise Server		fix available externally
Microsoft SharePoint Server 2019		fix available externally
Microsoft SharePoint Server Subscription Edition		fix available externally
Microsoft SharePoint Server 2010	<16.0.18526.20286
Microsoft SharePoint Server 2010	=2016
Microsoft SharePoint Server 2010	=2019

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Reference Links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-30378 (Advisory)

Frequently Asked Questions

What is the severity of CVE-2025-30378?
CVE-2025-30378 is rated as a critical vulnerability due to its potential for remote code execution.
How do I fix CVE-2025-30378?
To fix CVE-2025-30378, you should apply the latest security updates provided by Microsoft for your specific SharePoint version.
Which versions of SharePoint are affected by CVE-2025-30378?
CVE-2025-30378 affects Microsoft SharePoint Enterprise Server 2016, SharePoint Server 2019, and SharePoint Server Subscription Edition.
What type of attack is possible with CVE-2025-30378?
CVE-2025-30378 allows an unauthorized attacker to execute local code through deserialization of untrusted data.
Is authentication required to exploit CVE-2025-30378?
No, CVE-2025-30378 can be exploited without authentication, making it particularly dangerous.

collector/mitre-cve
source/MITRE
collector/msrc-cve
source/Microsoft
collector/msrc
agent/references
agent/title
agent/type
agent/first-publish-date
agent/software-canonical-lookup
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agent/author
agent/source
agent/severity
agent/weakness
agent/description
agent/event
agent/tags
agent/last-modified-date
collector/nvd-api
source/NVD
vendor/microsoft
canonical/microsoft sharepoint enterprise server
canonical/microsoft sharepoint server 2019
canonical/microsoft sharepoint server subscription edition
canonical/microsoft sharepoint server 2010
version/microsoft sharepoint server 2010/2016
version/microsoft sharepoint server 2010/2019

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