Microsoft Identity Services
CVE-2024-21319 — Microsoft Identity Denial of service vulnerability
Executive Summary
None
Overview
6.8
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
High
USER INTERACTION
None
SCOPE
Changed
CONFIDENTIALITY
None
INTEGRITY
None
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 5.9
EPSS Score
0.02868
probability of exploitation in the next 30 days
0.8497 percentile - updated 2026-06-21
View on FIRST.org
Affected Products
13 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| .NET 6.0 | 5033733 (Security Update) |
Important | Denial of Service | Maybe |
| .NET 7.0 | 5033734 (Security Update) |
Important | Denial of Service | Maybe |
| .NET 8.0 | 5033741 (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft Identity Model v5.0.0 | Release Notes (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft Identity Model v5.0.0 for Nuget | Release Notes (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft Identity Model v6.0.0 | Release Notes (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft Identity Model v6.0.0 for Nuget | Release Notes (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft Identity Model v7.0.0 | Release Notes (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft Identity Model v7.0.0 for Nuget | Release Notes (Security Update) |
Important | Denial of Service | Maybe |
| Microsoft Visual Studio 2022 version 17.2 | Release Notes (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 |
|---|---|---|
5033733 |
Security Update | Maybe |
5033734 |
Security Update | Maybe |
5033741 |
Security Update | Maybe |
Release Notes |
Security Update | Maybe |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
Morgan Brown with Microsoft
References
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