CVE-2025-21333

7.8 HIGH CISA KEV - Actively Exploited
Published: January 14, 2025 Modified: November 03, 2025
View on NVD

Description

Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21333
Source: secure@microsoft.com
Patch Vendor Advisory
https://www.exploit-db.com/exploits/52436
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory VDB Entry
https://www.vicarius.io/vsociety/posts/cve-2025-21333-elevated-privilege-exposure-in-windows-hyper-v-by-microsoft-detection-script
Source: af854a3a-2127-422b-91ae-364da2661108
Mitigation Third Party Advisory
https://www.vicarius.io/vsociety/posts/cve-2025-21333-elevated-privilege-exposure-in-windows-hyper-v-by-microsoft-mitigation-script
Source: af854a3a-2127-422b-91ae-364da2661108
Mitigation Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21333
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

5 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.8 / 10.0
EPSS (Exploit Probability)
76.7%
99th percentile
Exploitation Status
Actively Exploited
Remediation due: 2025-02-04

Weaknesses (CWE)

CWE-122

Affected Vendors

microsoft

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