CVE-2021-43239 — HIGH (7.1)

Vulnerability Description

Windows Recovery Environment Agent Elevation of Privilege Vulnerability

CVSS Score

7.1

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Windows 10	20h2
Microsoft	Windows 11	-
Microsoft	Windows Server	20h2
Microsoft	Windows Server 2016	2004

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4323PatchVendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4323PatchVendor Advisory

FAQ

What is CVE-2021-43239?

CVE-2021-43239 is a vulnerability with a CVSS score of 7.1 (HIGH). Windows Recovery Environment Agent Elevation of Privilege Vulnerability

How severe is CVE-2021-43239?

CVE-2021-43239 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-43239?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10, Microsoft Windows 11, Microsoft Windows Server, Microsoft Windows Server 2016.