SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-26416

Windows Hyper-V Denial of Service Vulnerability

HIGH 7.7EPSS 3.93%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (3.93%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Windows Hyper-V Denial of Service Vulnerability

CVSS 3.1
7.7 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
EPSS
3.93% probability · 90th percentile
CISA KEV
Not listed
Affected
microsoft/windows 10 · microsoft/windows server 2016 · microsoft/windows server 2019
Source
secure@microsoft.com

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