CVE-2025-21400

Name: CVE-2025-21400
Creator: NVD / NIST
Published: 2025-02-11T18:15:38.483+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8/10EPSS 29.78%

Last modified Jun 17, 2026

CVE-2025-21400 is a high-severity vulnerability rated 8/10 on the CVSS scale. Microsoft SharePoint Server Remote Code Execution Vulnerability. EPSS estimates a 29.78% chance of exploitation in the next 30 days.

Description

Microsoft SharePoint Server Remote Code Execution Vulnerability

Metrics

CVSS 3.1

8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

29.78%

98.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-285

Affected Software

Vendor	Product	Versions
Microsoft	Sharepoint Server	< 16.0.17928.20396
Microsoft	Sharepoint Server	2016
Microsoft	Sharepoint Server	2019

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21400Patch, Vendor Advisory

Timeline

Published: Feb 11, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-21400?

Microsoft SharePoint Server Remote Code Execution Vulnerability

How severe is CVE-2025-21400?

CVE-2025-21400 has a CVSS score of 8/10 (HIGH severity). The EPSS model estimates a 29.78% probability of exploitation in the next 30 days.

How do I fix CVE-2025-21400?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-21400?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST