Vulnerability · Published May 21, 2020 · Assigned by microsoft

CVE-2020-0909Windows Hyper-V Denial of Service Vulnerability

High 7.5

In plain English

A high-severity security flaw in Windows 10 Version 1507 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.7% (higher than 92% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)4.7%top 8.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A denial of service vulnerability exists when Hyper-V on a Windows Server fails to properly handle specially crafted network packets. To exploit the vulnerability, an attacker would send specially crafted network packets to the Hyper-V Server. The security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to properly handle these network packets.

Affected products (as reported)

VendorProductVersions
Microsoft Windows 10 Version 1507 10.0.10240.0 – before publication
Microsoft Windows 10 Version 1607 10.0.14393.0 – before publication
Microsoft Windows 10 Version 1709 10.0.0 – before publication
Microsoft Windows 10 Version 1803 10.0.0 – before publication
Microsoft Windows 10 Version 1809 10.0.17763.0 – before publication
Microsoft Windows 10 Version 1903 for x64-based Systems 10.0.0 – before publication
Microsoft Windows 10 Version 1909 10.0.0 – before publication
Microsoft Windows 7 Service Pack 1 6.1.0 – before publication
Microsoft Windows 8.1 6.3.0 – before publication
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0 – before publication
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 – before publication
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 – before publication
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 – before publication
Microsoft Windows Server 2012 6.2.9200.0 – before publication
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 – before publication
Microsoft Windows Server 2012 R2 6.3.9600.0 – before publication
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 – before publication
Microsoft Windows Server 2016 10.0.14393.0 – before publication
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 – before publication
Microsoft Windows Server 2019 10.0.17763.0 – before publication
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 – before publication
Microsoft Windows Server, version 1803 (Server Core Installation) 10.0.0 – before publication
Microsoft Windows Server, version 1903 (Server Core installation) 10.0.0 – before publication
Microsoft Windows Server, version 1909 (Server Core installation) 10.0.0 – before publication

References