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Critical MSRC-CVE-2026-47652 1 CVE

Windows Hyper-V Remote Code Execution Vulnerability

Published Jun 9, 2026 · Updated Jun 9, 2026

Summary

Impact: Remote Code Execution. Microsoft rating: Critical. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?
An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.

How could an attacker exploit this vulnerability?
An attacker could exploit this vulnerability by running code within a virtualized environment and issuing a specially crafted hypercall with a maliciously large or malformed payload size. By manipulating this input, the attacker can trigger a buffer overflow in the hypervisor during memory operations.

Security updates
10.0.20348.5256 — https://support.microsoft.com/help/5094128
10.0.26100.32995 — https://support.microsoft.com/help/5094125
10.0.26200.8655 — https://support.microsoft.com/help/5094126
10.0.22631.7219 — https://support.microsoft.com/help/5093998
10.0.28000.2269 — https://support.microsoft.com/help/5095051

Vulnerabilities 1

Revision history

  1. #1

    Information published.

References