CVE-2025-29976: Microsoft SharePoint Server Elevation of Privilege Vulnerability

Overview

Severity
High (CVSS 7.8)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Category
Elevation of Privilege
Exploit Status
Not Exploited
Exploitation Likelihood
More Likely
Patch Tuesday
2025-May
Released
2025-05-13
EPSS Score
0.72% (percentile: 72.5%)

Description

Improper privilege management in Microsoft Office SharePoint allows an authorized attacker to elevate privileges locally.

FAQ

What privileges could be gained by an attacker who successfully exploited this vulnerability? An attacker who successfully exploited the vulnerability could elevate privileges and gain the ability to read the load file. I am running SharePoint Enterprise Server 2016 or SharePoint Server 2019 and there are multiple updates available for each of these affected versions. Do I need to install all the updates listed in the Security Updates table for these versions? Yes. Customers should apply all updates offered for the software installed on their systems. If multiple updates apply, they can be installed in any order.

Affected Products (3)

Microsoft Office

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

Acknowledgments

Yansen with <a href="https://www.pulsesecure.com/">PulseSecure Pte Ltd.</a>

Revision History

  • 2025-05-13: Information published.