Deserialization Vulnerability in Microsoft Office SharePoint
CVE-2025-54897

8.8HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Sharepoint Enterprise Server 2016
Microsoft Sharepoint Server 2019
Microsoft Sharepoint Server Subscription Edition
Vendor
CVE Published:
9 September 2025

What is CVE-2025-54897?

A deserialization vulnerability exists in Microsoft Office SharePoint, allowing an authorized attacker to send crafted requests containing untrusted data, which can lead to remote code execution. This issue poses significant security risks as it enables attackers to execute arbitrary code on the affected systems over a network, potentially compromising data integrity and system confidentiality.

Affected Version(s)

Microsoft SharePoint Enterprise Server 2016 x64-based Systems 16.0.0 < 16.0.5517.1000

Microsoft SharePoint Server 2019 x64-based Systems 16.0.0 < 16.0.10417.20047

Microsoft SharePoint Server Subscription Edition x64-based Systems 16.0.0 < 16.0.19127.20100

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

.