CVE-2025-21333

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

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21333	Patch Vendor Advisory
https://www.exploit-db.com/exploits/52436	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	Mitigation Third Party Advisory
https://www.vicarius.io/vsociety/posts/cve-2025-21333-elevated-privilege-exposure-in-windows-hyper-v-by-microsoft-mitigation-script	Mitigation Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21333	US Government Resource

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_10_21h2:::::::x64:*
	cpe:2.3:o:microsoft:windows_10_22h2:::::::x64:*
	cpe:2.3:o:microsoft:windows_11_22h2::::::::
	cpe:2.3:o:microsoft:windows_11_23h2::::::::
	cpe:2.3:o:microsoft:windows_11_24h2::::::::
	cpe:2.3:o:microsoft:windows_server_2022_23h2:::::::x64:*
	cpe:2.3:o:microsoft:windows_server_2025:::::::x64:*

History

03 Nov 2025, 15:08

Type	Values Removed	Values Added
References		() https://www.exploit-db.com/exploits/52436 - Exploit, Third Party Advisory, VDB Entry

Information

Published : 2025-01-14 18:15

Updated : 2025-11-03 15:08

NVD link : CVE-2025-21333

Mitre link : CVE-2025-21333

CVE.ORG link : CVE-2025-21333

JSON object : View

Products Affected

microsoft

windows_10_22h2
windows_11_23h2
windows_11_24h2
windows_server_2022_23h2
windows_11_22h2
windows_server_2025
windows_10_21h2

CWE

CWE-122

Heap-based Buffer Overflow

NVD-CWE-noinfo

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