Information Disclosure Vulnerability in Windows Hyper-V by Microsoft
CVE-2026-42972

5.5MEDIUM

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1607
Windows 10 Version 1809
Windows 10 Version 21h2
Windows 10 Version 22h2
Vendor
CVE Published:
9 June 2026

What is CVE-2026-42972?

An information disclosure vulnerability exists in Windows Hyper-V that can allow an authorized attacker to expose sensitive information to unauthorized actors locally. This flaw poses risks to data integrity and security, necessitating prompt attention to mitigate potential threats.

Affected Version(s)

Windows 10 Version 1607 x64-based Systems 10.0.14393.0 < 10.0.14393.9234

Windows 10 Version 1809 x64-based Systems 10.0.17763.0 < 10.0.17763.8880

Windows 10 Version 21H2 x64-based Systems 10.0.19044.0 < 10.0.19044.7417

References

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

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.