CVE-2021-1721

Published: Feb 25, 2021

Modified: May 28, 2026

PUBLISHED

CVSS v3.1

6.5

MEDIUM

.NET Core and Visual Studio Denial of Service Vulnerability

Vendor	Product	Versions
Microsoft	Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)	affected `16.0.0 - < publication`
Microsoft	PowerShell Core 7.1	affected `7.1.0 - < publication`
Microsoft	PowerShell Core 7.0	affected `7.0.0 - < publication`
Microsoft	.NET Core 2.1	affected `2.1 - < publication`
Microsoft	.NET Core 3.1	affected `3.1 - < publication`
Microsoft	.NET 5.0	affected `5.0.0 - < publication`
Microsoft	Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)	affected `16.0 - < publication`
Microsoft	Microsoft Visual Studio 2019 version 16.8	affected `16.0 - < publication`
Microsoft	Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)	affected `15.9.0 - < publication`

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

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