Remote Code Execution in Microsoft SharePoint by Untrusted Data Deserialization
CVE-2025-47163

8.8HIGH

What is CVE-2025-47163?

A vulnerability has been identified in Microsoft Office SharePoint that potentially allows an authorized attacker to execute arbitrary code by deserializing untrusted data. This security flaw could lead to significant risks if exploited, enabling malicious actors to execute code remotely over a network, thereby compromising the integrity and confidentiality of the affected system. Organizations utilizing Microsoft SharePoint should evaluate their exposure and implement necessary security measures to mitigate this risk.

Affected Version(s)

Microsoft SharePoint Enterprise Server 2016 x64-based Systems 16.0.0 < 16.0.5504.1001

Microsoft SharePoint Server 2019 x64-based Systems 16.0.0 < 16.0.10417.20018

Microsoft SharePoint Server Subscription Edition x64-based Systems 16.0.0 < 16.0.18526.20396

References

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

.