What is the CVSS score of CVE-2021-43877?

CVE-2021-43877 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.7%.

Is there a patch available for CVE-2021-43877?

Yes, a patch is available for CVE-2021-43877. Update the affected software to the latest version immediately.

Visual Studio 2019 CVE-2021-43877

HIGH

2021-12-15 secure@microsoft.com

Information Disclosure Microsoft Visual Studio 2019 Visual Studio 2022 Asp Net Core

8.8

CVSS 3.1 · Vendor: microsoft

Severity by source

Vendor (microsoft) PRIMARY

8.8 HIGH

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

Primary rating from Vendor (microsoft) · only source for this CVE.

CVSS VectorVendor: microsoft

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Dec 15, 2021 - 15:15 cve.org

HIGH 8.8

DescriptionCVE.org

ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability

AnalysisAI

ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is low attack complexity.

Technical ContextAI

ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability Affected products include: Microsoft Asp.Net Core, Microsoft Visual Studio 2019, Microsoft Visual Studio 2022.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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