cve-2025-21334
Vulnerability from cvelistv5
Published
2025-01-14 18:04
Modified
2025-04-02 13:24
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
EPSS score ?
43.66% (0.97257)
Summary
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
References
secure@microsoft.comhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21334Patch, Vendor Advisory
Impacted products
Vendor Product Version
Microsoft Windows 10 Version 21H2 Version: 10.0.19043.0   < 10.0.19044.5371
 Create a notification for this product.
   Microsoft Windows 11 version 22H2 Version: 10.0.22621.0   < 10.0.22621.4751
 Create a notification for this product.
   Microsoft Windows 10 Version 22H2 Version: 10.0.19045.0   < 10.0.19045.5371
 Create a notification for this product.
   Microsoft Windows Server 2025 (Server Core installation) Version: 10.0.26100.0   < 10.0.26100.2894
 Create a notification for this product.
   Microsoft Windows 11 version 22H3 Version: 10.0.22631.0   < 10.0.22631.4751
 Create a notification for this product.
   Microsoft Windows 11 Version 23H2 Version: 10.0.22631.0   < 10.0.22631.4751
 Create a notification for this product.
   Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) Version: 10.0.25398.0   < 10.0.25398.1369
 Create a notification for this product.
   Microsoft Windows 11 Version 24H2 Version: 10.0.26100.0   < 10.0.26100.2894
 Create a notification for this product.
   Microsoft Windows Server 2025 Version: 10.0.26100.0   < 10.0.26100.2894
 Create a notification for this product.
CISA Known exploited vulnerability
Data from the Known Exploited Vulnerabilities Catalog

Date added: 2025-01-14

Due date: 2025-02-04

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Used in ransomware: Unknown

Notes: https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21334 ; https://nvd.nist.gov/vuln/detail/CVE-2025-21334

Show details on NVD website

To clipboard 

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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.