Windows Hyper-V Information Disclosure Vulnerability
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?

Exposure of sensitive information to an unauthorized actor in Windows Hyper-V allows an authorized attacker to disclose information locally.

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

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

Download the Critical Vulnerability Management Cheat Sheet

CVE-2026-42972 Data