CVE-2021-43877 — HIGH (8.8)

Vulnerability Description

ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability

CVSS Score

8.8

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Asp.Net Core	3.1
Microsoft	Visual Studio 2019	16.7
Microsoft	Visual Studio 2022	17.0

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4387PatchVendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4387PatchVendor Advisory

FAQ

What is CVE-2021-43877?

CVE-2021-43877 is a vulnerability with a CVSS score of 8.8 (HIGH). ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability

How severe is CVE-2021-43877?

CVE-2021-43877 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-43877?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Asp.Net Core, Microsoft Visual Studio 2019, Microsoft Visual Studio 2022.