CVE-2025-21333

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-21333
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability

7.8 /10

CVSS v3 : HIGH

V3 Legend

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.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
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:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
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

21 Oct 2025, 23:16

Type Values Removed Values Added
References
  • () https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21333 -

21 Oct 2025, 20:20

Type Values Removed Values Added
References
  • {'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21333', 'source': '134c704f-9b21-4f2e-91b3-4a467353bcc0'}

21 Oct 2025, 19:21

Type Values Removed Values Added
References
  • () https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21333 -

03 Apr 2025, 20:58

Type Values Removed Values Added
References () https://www.vicarius.io/vsociety/posts/cve-2025-21333-elevated-privilege-exposure-in-windows-hyper-v-by-microsoft-detection-script - () https://www.vicarius.io/vsociety/posts/cve-2025-21333-elevated-privilege-exposure-in-windows-hyper-v-by-microsoft-detection-script - Mitigation, Third Party Advisory
References () https://www.vicarius.io/vsociety/posts/cve-2025-21333-elevated-privilege-exposure-in-windows-hyper-v-by-microsoft-mitigation-script - () https://www.vicarius.io/vsociety/posts/cve-2025-21333-elevated-privilege-exposure-in-windows-hyper-v-by-microsoft-mitigation-script - Mitigation, Third Party Advisory

07 Mar 2025, 17:15

Type Values Removed Values Added
References
  • () https://www.vicarius.io/vsociety/posts/cve-2025-21333-elevated-privilege-exposure-in-windows-hyper-v-by-microsoft-detection-script -
  • () https://www.vicarius.io/vsociety/posts/cve-2025-21333-elevated-privilege-exposure-in-windows-hyper-v-by-microsoft-mitigation-script -

15 Jan 2025, 20:57

Type Values Removed Values Added
CPE cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*
CWE NVD-CWE-noinfo
References () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21333 - () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21333 - Patch, Vendor Advisory
First Time Microsoft windows 10 22h2
Microsoft windows 11 24h2
Microsoft windows 10 21h2
Microsoft windows 11 22h2
Microsoft windows 11 23h2
Microsoft windows Server 2025
Microsoft windows Server 2022 23h2
Microsoft
Summary
  • (es) Vulnerabilidad de elevación de privilegios en Windows Hyper-V NT Kernel Integration VSP

14 Jan 2025, 18:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-01-14 18:15

Updated : 2025-10-21 23:16

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_10_21h2
  • windows_11_22h2
  • windows_server_2025
  • windows_server_2022_23h2
CWE
CWE-122

Heap-based Buffer Overflow

NVD-CWE-noinfo