CVE-2021-1721

Published: Feb 25, 2021Modified: Jun 17, 2026

6.5

Vector

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

Exploitability: 2.8 / Impact: 3.6

Source: NVD (Secondary)

Description

.NET Core and Visual Studio Denial of Service Vulnerability

Affected (7)

Products: Microsoft: .net, .net Core, Powershell Core, Visual Studio 2017, Visual Studio 2019

5 products

Powershell Core

Visual Studio 2017

Visual Studio 2019

Configuration A

7 vulnerable

Vulnerable Software	Affected Versions
Microsoft .net	5.0 ≤ version ≤ 5.0.2
Microsoft .net Core	2.1 ≤ version ≤ 2.1.24
Microsoft .net Core	3.1 ≤ version ≤ 3.1.11
Microsoft Powershell Core	Version 7.0
Microsoft Powershell Core	Version 7.1
Microsoft Visual Studio 2017	15.0 ≤ version ≤ 15.9
Microsoft Visual Studio 2019	16.0 ≤ version ≤ 16.8

References (2)

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1721

Source: secure@microsoft.com

PatchVendor Advisory

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1721

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

Timeline

No history available yet.