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CVE-2011-1872

MediumPublished

Hyper-V in Microsoft Windows Server 2008 Gold, SP2, R2, and R2 SP1 allows guest OS users to cause a denial of service (host OS infinite loop) via malformed...

Published: Jun 16, 2011
Updated: Aug 6, 2024
Assigning CNA: microsoft
Evidence observed: Jun 14, 2011

Primary CVSS

4.7/ 10Medium

nvd · CVSS 2.0

AV:L/AC:M/Au:N/C:N/I:N/A:C

EPSS probability estimate

2.6%

Low · next 30 days

Percentile: 84.9%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Hyper-V in Microsoft Windows Server 2008 Gold, SP2, R2, and R2 SP1 allows guest OS users to cause a denial of service (host OS infinite loop) via malformed machine instructions in a VMBus packet, aka "VMBus Persistent DoS Vulnerability."

Sources

Microsoft HyperV - Persistent Denial of Service (MS11-047)Exploit
Core Security · windows · Jun 14, 2011

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