CVE-2021-42286 — HIGH (7.8)

Vulnerability Description

Windows Core Shell SI Host Extension Framework for Composable Shell Elevation of Privilege Vulnerability

CVSS Score

7.8

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

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

Related Weaknesses (CWE)

CWE-269

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4228PatchVendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4228PatchVendor Advisory

FAQ

What is CVE-2021-42286?

CVE-2021-42286 is a vulnerability with a CVSS score of 7.8 (HIGH). Windows Core Shell SI Host Extension Framework for Composable Shell Elevation of Privilege Vulnerability

How severe is CVE-2021-42286?

CVE-2021-42286 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-42286?

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