CVE-2021-40461

critical
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

Windows Hyper-V Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-38672.

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40461

Details

Source: MITRE

Published: 2021-10-13

Updated: 2021-10-19

Risk Information

CVSS v2

Base Score: 5.2

Vector: AV:A/AC:L/Au:S/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 5.1

Severity: MEDIUM

CVSS v3

Base Score: 9

Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Impact Score: 6

Exploitability Score: 2.3

Severity: CRITICAL

Tenable Plugins

View all (5 total)

IDNameProductFamilySeverity
154042KB5006674: Windows 11 Security Update (October 2021)NessusWindows : Microsoft Bulletins
high
154037KB5006667: Windows 10 version 1909 Security Update (October 2021)NessusWindows : Microsoft Bulletins
high
154033KB5006670: Windows 10 Version 2004 / Windows 10 Version 20H2 / Windows 10 Version 21H1 October 2021 Security UpdateNessusWindows : Microsoft Bulletins
high
154029KB5006699: Windows Server 2022 Security Update (October 2021)NessusWindows : Microsoft Bulletins
high
154026KB5006672: Windows 10 Version 1809 and Windows Server 2019 Security Update (October 2021)NessusWindows : Microsoft Bulletins
high