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Advisory record · GHSA-447r-wph3-92pm

Microsoft Security Advisory CVE-2024-38095 | .NET Denial of Service Vulnerability

CVSS 7.5 HighEPSS 0.027 · 86th percentile

Published by the GitHub Advisory Database at 9 Jul 2024, 21:14 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
Microsoft.NetCore.App.Runtime.linux-armNuGet>=8.0.0, <8.0.7 || >=6.0.0, <6.0.328.0.7, 6.0.32
Microsoft.NetCore.App.Runtime.linux-arm64NuGet>=8.0.0, <8.0.7 || >=6.0.0, <6.0.328.0.7, 6.0.32
Microsoft.NetCore.App.Runtime.linux-musl-armNuGet>=8.0.0, <8.0.7 || >=6.0.0, <6.0.328.0.7, 6.0.32
Microsoft.NetCore.App.Runtime.linux-musl-arm64NuGet>=8.0.0, <8.0.7 || >=6.0.0, <6.0.328.0.7, 6.0.32
Microsoft.NetCore.App.Runtime.linux-musl-x64NuGet>=8.0.0, <8.0.7 || >=6.0.0, <6.0.328.0.7, 6.0.32
Microsoft.NetCore.App.Runtime.linux-x64NuGet>=8.0.0, <8.0.7 || >=6.0.0, <6.0.328.0.7, 6.0.32
Microsoft.NetCore.App.Runtime.osx-arm64NuGet>=8.0.0, <8.0.7 || >=6.0.0, <6.0.328.0.7, 6.0.32
Microsoft.NetCore.App.Runtime.osx-x64NuGet>=8.0.0, <8.0.7 || >=6.0.0, <6.0.328.0.7, 6.0.32
Microsoft.NetCore.App.Runtime.win-armNuGet>=8.0.0, <8.0.7 || >=6.0.0, <6.0.328.0.7, 6.0.32
Microsoft.NetCore.App.Runtime.win-arm64NuGet>=8.0.0, <8.0.7 || >=6.0.0, <6.0.328.0.7, 6.0.32
Microsoft.NetCore.App.Runtime.win-x64NuGet>=8.0.0, <8.0.7 || >=6.0.0, <6.0.328.0.7, 6.0.32
Microsoft.NetCore.App.Runtime.win-x86NuGet>=6.0.0, <6.0.32 || >=8.0.0, <8.0.76.0.32, 8.0.7
System.Formats.Asn1NuGet>=5.0.0-preview.7.20364.11, <6.0.1 || >=7.0.0-preview.1.22076.8, <8.0.16.0.1, 8.0.1
Identifiers
GHSA-447r-wph3-92pm · BIT-dotnet-2024-38095 · BIT-dotnet-sdk-2024-38095 · CVE-2024-38095
Weakness (CWE)
CWE-20
Tags
Published
9 Jul 2024
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The Microsoft.NetCore.App.Runtime packages (for Linux, macOS and Windows targets) in .NET 6.0 before 6.0.32 and .NET 8.0 before 8.0.7 are affected. A malicious X.509 certificate or certificate collection parsed by System.Formats.Asn1 can cause excessive CPU consumption, leading to denial of service. Upgrade to 6.0.32 or 8.0.7 or later. The source lists no mitigating factors.

Written 9 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C CNA (microsoft)
  • CISA KEV Not listed.
  • EPSS 0.027, the 86th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 9 Jul 2024, 17:36 UTC Published by the maintainers as a GitHub repository advisory
  2. 31 Oct 2026, 15:21 UTC First seen by agentprime
  3. 31 Oct 2026, 15:21 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.