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CVE-2024-21319

21
FAUCET Score

CVE-2024-21319 is a Denial of Service vulnerability affecting Microsoft .NET, Identity Model, and Visual Studio 2022. With a CVSS score of 6.8 (Medium), it can be exploited remotely by a highly privileged attacker with low attack complexity to cause a high impact on availability. There is no evidence of active exploitation, public exploit code, or inclusion in the KEV catalog, though it has received limited community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.0.0, < 6.0.26CPE matchmatch criteria
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
>= 7.0.0, < 7.0.15CPE matchmatch criteria
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
>= 8.0.0, < 8.0.1CPE matchmatch criteria
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
>= 5.0.0, < 5.7.0CPE matchmatch criteria
cpe:2.3:a:microsoft:identity_model:*:*:*:*:*:.net:*:*
>= 6.0.0, < 6.34.0CPE matchmatch criteria
cpe:2.3:a:microsoft:identity_model:*:*:*:*:*:.net:*:*

CVSS Data

CVSS version used by this source: 3.1

6.8MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.3
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.87%
Probability of exploitation in next 30 days
EPSS Percentile
85.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0287 is in the 95th percentile among its peer group of 3,563 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (27)

microsoftpatch availablevia msrc
Product: .NET 6.0Fixed in: 6.0.26
View patch
microsoftpatch availablevia msrc
Product: Microsoft Visual Studio 2022 version 17.2Fixed in: 17.2.23
View patch
microsoftpatch availablevia msrc
Product: Microsoft Visual Studio 2022 version 17.6Fixed in: 17.6.11
View patch
microsoftpatch availablevia msrc
Product: Microsoft Visual Studio 2022 version 17.4Fixed in: 17.4.15
View patch
microsoftpatch availablevia msrc
Product: Microsoft Visual Studio 2022 version 17.8Fixed in: 17.8.4
View patch
microsoftpatch availablevia msrc
Product: .NET 7.0Fixed in: 7.0.15
View patch
microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Microsoft Identity Model v5.0.0 for NugetFixed in: 5.7.0
View patch
microsoftpatch availablevia msrc
Product: Microsoft Identity Model v5.0.0Fixed in: 5.7.0
View patch
microsoftpatch availablevia msrc
Product: Microsoft Identity Model v7.0.0Fixed in: 7.1.2
View patch
microsoftpatch availablevia msrc
Product: Microsoft Identity Model v7.0.0 for NugetFixed in: 7.1.2
View patch
microsoftpatch availablevia msrc
Product: Microsoft Identity Model v6.0.0Fixed in: 6.34.0
View patch
microsoftpatch availablevia msrc
Product: Microsoft Identity Model v6.0.0 for NugetFixed in: 6.34.0
View patch
microsoftpatch availablevia msrc
Product: .NET 8.0Fixed in: 8.0.1
View patch
nugetpatch availablevia ghsa
Product: System.IdentityModel.Tokens.JwtFixed in: 5.7.0
nugetpatch availablevia ghsa
Product: System.IdentityModel.Tokens.JwtFixed in: 6.34.0
nugetpatch availablevia ghsa
Product: System.IdentityModel.Tokens.JwtFixed in: 7.1.2
nugetpatch availablevia ghsa
Product: Microsoft.IdentityModel.JsonWebTokensFixed in: 5.7.0
nugetpatch availablevia ghsa
Product: Microsoft.IdentityModel.JsonWebTokensFixed in: 6.34.0
nugetpatch availablevia ghsa
Product: Microsoft.IdentityModel.JsonWebTokensFixed in: 7.1.2
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: dotnet6.0-0:6.0.126-1.el9_3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: dotnet8.0-0:8.0.101-1.el9_3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: dotnet7.0-0:7.0.115-1.el9_3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: dotnet6.0-0:6.0.126-1.el8_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: dotnet7.0-0:7.0.115-1.el8_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: dotnet8.0-0:8.0.101-1.el8_9
View patch
redhatpatch availablevia redhat_api
Product: .NET Core on Red Hat Enterprise LinuxFixed in: rh-dotnet60-dotnet-0:6.0.126-1.el7_9
View patch

Vendor Advisories (3)

redhatCVE-2024-21319Moderate

dotnet: .NET Denial of Service Vulnerability

Jan 10, 2024
nugetGHSA-59j7-ghrg-fj52medium

Microsoft ASP.NET Core project templates vulnerable to denial of service

Jan 9, 2024
microsoft2024-Jan/CVE-2024-21319Important

Microsoft Identity Denial of service vulnerability

Jan 9, 2024

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2024-21319
PatchVendor Advisory