What is CVE-2025-30378?

CVE-2025-30378 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Microsoft SharePoint Server Remote Code Execution Vulnerability

Which CVE IDs does CVE-2025-30378 cover?

CVE-2025-30378 covers the following CVE IDs: CVE-2025-30378. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-30378?

CVE-2025-30378 has a CVSS v3 base score of 7.0, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-30378?

CVE-2025-30378 affects 3 products, including: Microsoft SharePoint Enterprise Server 2016; Microsoft SharePoint Server 2019; Microsoft SharePoint Server Subscription Edition.

CVE-2025-30378HighCVSS 7.0

Microsoft SharePoint Server Remote Code Execution Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

May 31, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2025-30378 →

📋 Description

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

🎯 Affected products3

Microsoft SharePoint Enterprise Server 2016
Microsoft SharePoint Server 2019
Microsoft SharePoint Server Subscription Edition

✅ Remediation

KB5002722 (Security Update) — fixed build 16.0.5500.1001 KB5002708 (Security Update) — fixed build 16.0.10417.20010 KB5002709 (Security Update) — fixed build 16.0.18526.20286

🔗 References (4)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-30378
referencehttps://support.microsoft.com/help/5002722
referencehttps://support.microsoft.com/help/5002708
referencehttps://support.microsoft.com/help/5002709