// For flags

CVE-2024-21404

.NET Denial of Service Vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

.NET Denial of Service Vulnerability

Vulnerabilidad de denegaciĆ³n de servicio de .NET

A denial of service vulnerability exists in .NET applications with OpenSSL support when parsing X509 certificates. The issue arises from inadequate validation of user-supplied input in .NET. This flaw allows a remote attacker to trigger a denial of service (DoS) attack by providing specially crafted input.

Brennan Conroy discovered that .NET with SignalR did not properly handle malicious clients. An attacker could possibly use this issue to cause a denial of service. Bahaa Naamneh discovered that .NET with OpenSSL support did not properly parse X509 certificates. An attacker could possibly use this issue to cause a denial of service.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
Poc
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-12-08 CVE Reserved
  • 2024-02-13 CVE Published
  • 2024-12-31 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
  • CWE-476: NULL Pointer Dereference
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Microsoft
Search vendor "Microsoft"
Asp.net Core
Search vendor "Microsoft" for product "Asp.net Core"
>= 6.0.0 < 6.0.27
Search vendor "Microsoft" for product "Asp.net Core" and version " >= 6.0.0 < 6.0.27"
-
Affected
Microsoft
Search vendor "Microsoft"
Asp.net Core
Search vendor "Microsoft" for product "Asp.net Core"
>= 7.0.0 < 7.0.16
Search vendor "Microsoft" for product "Asp.net Core" and version " >= 7.0.0 < 7.0.16"
-
Affected
Microsoft
Search vendor "Microsoft"
Asp.net Core
Search vendor "Microsoft" for product "Asp.net Core"
>= 8.0.0 < 8.0.2
Search vendor "Microsoft" for product "Asp.net Core" and version " >= 8.0.0 < 8.0.2"
-
Affected
Microsoft
Search vendor "Microsoft"
Visual Studio 2022
Search vendor "Microsoft" for product "Visual Studio 2022"
>= 17.4.0 < 17.4.16
Search vendor "Microsoft" for product "Visual Studio 2022" and version " >= 17.4.0 < 17.4.16"
-
Affected
Microsoft
Search vendor "Microsoft"
Visual Studio 2022
Search vendor "Microsoft" for product "Visual Studio 2022"
>= 17.6.0 < 17.6.12
Search vendor "Microsoft" for product "Visual Studio 2022" and version " >= 17.6.0 < 17.6.12"
-
Affected
Microsoft
Search vendor "Microsoft"
Visual Studio 2022
Search vendor "Microsoft" for product "Visual Studio 2022"
>= 17.8.0 < 17.8.7
Search vendor "Microsoft" for product "Visual Studio 2022" and version " >= 17.8.0 < 17.8.7"
-
Affected