Local Code Execution Vulnerability in Windows Hyper-V by Microsoft
CVE-2026-32149

7.3HIGH

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1607
Windows 10 Version 1809
Windows 10 Version 21h2
Windows 10 Version 22h2
Vendor
CVE Published:
14 April 2026

What is CVE-2026-32149?

A security flaw in Windows Hyper-V due to improper input validation can permit an authorized attacker to execute arbitrary code locally. This vulnerability could lead to significant security risks, making it essential for users of affected products to apply patches and updates promptly. Administrators are advised to review security advisories and implement recommended mitigations.

Affected Version(s)

Windows 10 Version 1607 x64-based Systems 10.0.14393.0 < 10.0.14393.9060

Windows 10 Version 1809 x64-based Systems 10.0.17763.0 < 10.0.17763.8644

Windows 10 Version 21H2 x64-based Systems 10.0.19044.0 < 10.0.19044.7184

References

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

CVSS V3.1

Score:
7.3
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.