microsoft windows-server-2019 CVE-2025-21391 vulnerability in Microsoft Products
Published on February 11, 2025

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Windows Storage Elevation of Privilege Vulnerability

Vendor Advisory NVD

Known Exploited Vulnerability

This Microsoft Windows Storage Link Following Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Microsoft Windows Storage contains a link following vulnerability that could allow for privilege escalation. This vulnerability could allow an attacker to delete data including data that results in the service being unavailable.

The following remediation steps are recommended / required by March 4, 2025: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Vulnerability Analysis

CVE-2025-21391 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. It has an exploitability score of 1.8 out of four. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity and availability.


Products Associated with CVE-2025-21391

You can be notified by stack.watch whenever vulnerabilities like CVE-2025-21391 are published in these products:

Microsoft Windows Server 2019
 
Microsoft Windows Server 2022
 
Microsoft Windows 11
 
Microsoft Windows 10
 
Microsoft Windows 11 23h2
 
Microsoft Windows Server 2022 23h2
 
Microsoft Windows 11 24h2
 
Microsoft Windows Server 2025
 
Microsoft Windows 10 1507
 
Microsoft Windows Server 2016
 

What versions are vulnerable to CVE-2025-21391?