CVE-2021-28476 — CRITICAL (9.9)

Vulnerability Description

Windows Hyper-V Remote Code Execution Vulnerability

CVSS Score

9.9

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Windows 10	-
Microsoft	Windows 7	-
Microsoft	Windows 8.1	-
Microsoft	Windows Server 2008	-
Microsoft	Windows Server 2012	-
Microsoft	Windows Server 2016	-
Microsoft	Windows Server 2019	-

References

http://packetstormsecurity.com/files/163497/Microsoft-Hyper-V-vmswitch.sys-ProofThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-2847PatchVendor Advisory
http://packetstormsecurity.com/files/163497/Microsoft-Hyper-V-vmswitch.sys-ProofThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-2847PatchVendor Advisory

FAQ

What is CVE-2021-28476?

CVE-2021-28476 is a vulnerability with a CVSS score of 9.9 (CRITICAL). Windows Hyper-V Remote Code Execution Vulnerability

How severe is CVE-2021-28476?

CVE-2021-28476 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-28476?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012.