SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-40461

Windows Hyper-V Remote Code Execution Vulnerability

HIGH 8.0EPSS 1.36%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Windows Hyper-V Remote Code Execution Vulnerability

CVSS 3.1
8.0 HIGHCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS
1.36% probability · 70th percentile
CISA KEV
Not listed
Affected
microsoft/windows 10 · microsoft/windows 11 · microsoft/windows server · microsoft/windows server 2016 · microsoft/windows server 2019 · microsoft/windows server 2022
Source
secure@microsoft.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.