CVE-2021-43877

ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability

Description

ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability

8.8

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.73% Top 30%

Vendor Advisory microsoft.com

Affected: Microsoft Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)

Affected: Microsoft Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8)

Affected: Microsoft Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10)

Affected: Microsoft Microsoft Visual Studio 2022 version 17.0

Affected: Microsoft ASP.NET Core 3.1

Affected: Microsoft ASP.NET Core 5.0

Affected: Microsoft ASP.NET Core 6.0

Affected: Microsoft Microsoft Visual Studio 2022 version 17.1

References

Link	Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43877	patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-43877?: CVE-2021-43877 has been scored as a high severity vulnerability.
How to fix CVE-2021-43877?: To fix CVE-2021-43877, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-43877 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-43877 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-43877?: CVE-2021-43877 affects Microsoft Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6), Microsoft Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8), Microsoft Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10), Microsoft Microsoft Visual Studio 2022 version 17.0, Microsoft ASP.NET Core 3.1, Microsoft ASP.NET Core 5.0, Microsoft ASP.NET Core 6.0, Microsoft Microsoft Visual Studio 2022 version 17.1.

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