// For flags

CVE-2025-21335

Microsoft Windows Hyper-V NT Kernel Integration VSP Use-After-Free Vulnerability

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

Yes
*KEV

Decision

Act
*SSVC
Descriptions

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

Microsoft Windows Hyper-V NT Kernel Integration VSP contains a use-after-free vulnerability that allows a local attacker to gain SYSTEM privileges.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Act
Exploitation
Active
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2024-12-11 CVE Reserved
  • 2025-01-14 CVE Published
  • 2025-01-14 Exploited in Wild
  • 2025-01-16 EPSS Updated
  • 2025-01-17 CVE Updated
  • 2025-02-04 KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
CAPEC
References (1)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Microsoft
Search vendor "Microsoft"
Windows 10 Version 21H2
Search vendor "Microsoft" for product "Windows 10 Version 21H2"
>= 10.0.19043.0 < 10.0.19044.5371
Search vendor "Microsoft" for product "Windows 10 Version 21H2" and version " >= 10.0.19043.0 < 10.0.19044.5371"
en
Affected
Microsoft
Search vendor "Microsoft"
Windows 11 Version 22H2
Search vendor "Microsoft" for product "Windows 11 Version 22H2"
>= 10.0.22621.0 < 10.0.22621.4751
Search vendor "Microsoft" for product "Windows 11 Version 22H2" and version " >= 10.0.22621.0 < 10.0.22621.4751"
en
Affected
Microsoft
Search vendor "Microsoft"
Windows 10 Version 22H2
Search vendor "Microsoft" for product "Windows 10 Version 22H2"
>= 10.0.19045.0 < 10.0.19045.5371
Search vendor "Microsoft" for product "Windows 10 Version 22H2" and version " >= 10.0.19045.0 < 10.0.19045.5371"
en
Affected
Microsoft
Search vendor "Microsoft"
Windows Server 2025 (Server Core Installation)
Search vendor "Microsoft" for product "Windows Server 2025 (Server Core Installation)"
>= 10.0.26100.0 < 10.0.26100.2894
Search vendor "Microsoft" for product "Windows Server 2025 (Server Core Installation)" and version " >= 10.0.26100.0 < 10.0.26100.2894"
en
Affected
Microsoft
Search vendor "Microsoft"
Windows 11 Version 22H3
Search vendor "Microsoft" for product "Windows 11 Version 22H3"
>= 10.0.22631.0 < 10.0.22631.4751
Search vendor "Microsoft" for product "Windows 11 Version 22H3" and version " >= 10.0.22631.0 < 10.0.22631.4751"
en
Affected
Microsoft
Search vendor "Microsoft"
Windows 11 Version 23H2
Search vendor "Microsoft" for product "Windows 11 Version 23H2"
>= 10.0.22631.0 < 10.0.22631.4751
Search vendor "Microsoft" for product "Windows 11 Version 23H2" and version " >= 10.0.22631.0 < 10.0.22631.4751"
en
Affected
Microsoft
Search vendor "Microsoft"
Windows Server 2022, 23H2 Edition (Server Core Installation)
Search vendor "Microsoft" for product "Windows Server 2022, 23H2 Edition (Server Core Installation)"
>= 10.0.25398.0 < 10.0.25398.1369
Search vendor "Microsoft" for product "Windows Server 2022, 23H2 Edition (Server Core Installation)" and version " >= 10.0.25398.0 < 10.0.25398.1369"
en
Affected
Microsoft
Search vendor "Microsoft"
Windows 11 Version 24H2
Search vendor "Microsoft" for product "Windows 11 Version 24H2"
>= 10.0.26100.0 < 10.0.26100.2894
Search vendor "Microsoft" for product "Windows 11 Version 24H2" and version " >= 10.0.26100.0 < 10.0.26100.2894"
en
Affected
Microsoft
Search vendor "Microsoft"
Windows Server 2025
Search vendor "Microsoft" for product "Windows Server 2025"
>= 10.0.26100.0 < 10.0.26100.2894
Search vendor "Microsoft" for product "Windows Server 2025" and version " >= 10.0.26100.0 < 10.0.26100.2894"
en
Affected