Deserialization Vulnerability in Microsoft SharePoint
CVE-2025-49712

8.8HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Sharepoint Enterprise Server 2016
Microsoft Sharepoint Server 2019
Vendor
CVE Published:
12 August 2025

What is CVE-2025-49712?

A deserialization vulnerability in Microsoft Office SharePoint allows an unauthenticated attacker with authorized access to leverage untrusted data, potentially enabling remote code execution over a network. This flaw underscores the significance of validating and sanitizing inputs to prevent unauthorized actions within affected systems.

Affected Version(s)

Microsoft SharePoint Enterprise Server 2016 x64-based Systems 16.0.0 < 16.0.5513.1002

Microsoft SharePoint Server 2019 x64-based Systems 16.0.0 < 16.0.10417.20041

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-49712 : Deserialization Vulnerability in Microsoft SharePoint