Use After Free Vulnerability in Windows Hyper-V by Microsoft
CVE-2026-25170

7HIGH

Key Information:

Vendor

Microsoft
Status
Windows 11 Version 22h3
Windows 11 Version 23h2
Windows 11 Version 24h2
Windows 11 Version 25h2
Vendor
CVE Published:
10 March 2026

What is CVE-2026-25170?

A use after free vulnerability exists within Windows Hyper-V, permitting an authorized attacker to execute a local privilege escalation. This flaw could allow an attacker to exploit the memory handling process, leading to unauthorized access to elevated privileges within the affected system. Organizations utilizing Windows Hyper-V must be vigilant and apply updates as necessary to mitigate this risk. For detailed updates and patches, refer to the Microsoft advisory.

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Affected Version(s)

Windows 11 version 22H3 ARM64-based Systems 10.0.22631.0 < 10.0.22631.6783

Windows 11 Version 23H2 x64-based Systems 10.0.22631.0 < 10.0.22631.6783

Windows 11 Version 24H2 ARM64-based Systems 10.0.26100.0 < 10.0.26100.8037

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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