CVE-2021-1721

.NET Core and Visual Studio Denial of Service Vulnerability

State: Published
Severity: 6.5 Medium
Published: Feb 25, 2021
Updated: May 28, 2026
Reserved: Dec 2, 2020

Description

.NET Core and Visual Studio Denial of Service Vulnerability

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	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	microsoft

Weaknesses

The record names no weakness.

Affected Products

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

References

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

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