.NET
CVE-2024-21404 — .NET Denial of Service Vulnerability
Executive Summary
None
Overview
7.5
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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
None
SCOPE
Unchanged
CONFIDENTIALITY
None
INTEGRITY
None
AVAILABILITY
High
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.7
EPSS Score
0.02707
probability of exploitation in the next 30 days
0.84649 percentile - updated 2026-08-14
View on FIRST.org
Affected Products
6 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| .NET 6.0 | 5035119 (Security Update) |
Important | Denial of Service | Maybe |
| .NET 7.0 | 5035120 (Security Update) |
Important | Denial of Service | Maybe |
| .NET 8.0 | 5035121 (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft Visual Studio 2022 version 17.4 | Release Notes (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft Visual Studio 2022 version 17.6 | Release Notes (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft Visual Studio 2022 version 17.8 | Release Notes (Security Update) |
Important | Denial of Service | Maybe |
Patches
4 patches
| Article | Type | Restart |
|---|---|---|
5035119 |
Security Update | Maybe |
5035120 |
Security Update | Maybe |
5035121 |
Security Update | Maybe |
Release Notes |
Security Update | Maybe |
Exploits & PoC
No public exploit or PoC has been linked for this CVE yet. When available, references are sourced from public repositories and may be unverified or non-functional — review carefully before use.
Detection Rules
No public Sigma or Nuclei detection rule has been mapped to this CVE yet. Coverage is concentrated on exploited / high-profile vulnerabilities; check SigmaHQ for updates.
Acknowledgments
Bahaa Naamneh with Crosspoint Labs
References
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