CVE-2021-1721 : .NET Core and Visual Studio Denial of Service Vulnerability

.NET Core and Visual Studio Denial of Service Vulnerability

Published 2021-02-25 23:15:13

Updated 2023-12-29 17:15:54

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2021-1721

Microsoft » .net Core
Versions from including (>=) 3.1 and up to, including, (<=) 3.1.11
cpe:2.3:a:microsoft:.net_core:*:*:*:*:*:*:*:*
Matching versions
Microsoft » .net Core
Versions from including (>=) 2.1 and up to, including, (<=) 2.1.24
cpe:2.3:a:microsoft:.net_core:*:*:*:*:*:*:*:*
Matching versions
Microsoft » Powershell Core » Version: 7.0
cpe:2.3:a:microsoft:powershell_core:7.0:*:*:*:*:*:*:*
Matching versions
Microsoft » Powershell Core » Version: 7.1
cpe:2.3:a:microsoft:powershell_core:7.1:*:*:*:*:*:*:*
Matching versions
Microsoft » Visual Studio 2017
Versions from including (>=) 15.0 and up to, including, (<=) 15.9
cpe:2.3:a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:*
Matching versions
Microsoft » Visual Studio 2019
Versions from including (>=) 16.0 and up to, including, (<=) 16.8
cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*
Matching versions
Microsoft » .net
Versions from including (>=) 5.0 and up to, including, (<=) 5.0.2
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.29%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 69 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:N/A:P	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	2.8	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: None Availability: High
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	2.8	3.6	Microsoft Corporation
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: None Availability: High

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

CVE-2021-1721 - Security Update Guide - Microsoft - .NET Core and Visual Studio Denial of Service Vulnerability
Patch;Vendor Advisory

Jump to