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Advisory record · GHSA-jjcv-wr2g-4rv4

Microsoft Security Advisory CVE-2025-21172 | .NET and Visual Studio Remote Code Execution Vulnerability

CVSS 7.5 HighEPSS 0.018 · 79th percentile

Published by the GitHub Advisory Database at 14 Jan 2025, 19:44 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
Microsoft.NetCore.App.Runtime.linux-armNuGet>=9.0.0, <9.0.1 || >=8.0.0, <8.0.129.0.1, 8.0.12
Microsoft.NetCore.App.Runtime.linux-arm64NuGet>=9.0.0, <9.0.1 || >=8.0.0, <8.0.129.0.1, 8.0.12
Microsoft.NetCore.App.Runtime.linux-musl-armNuGet>=9.0.0, <9.0.1 || >=8.0.0, <8.0.129.0.1, 8.0.12
Microsoft.NetCore.App.Runtime.linux-musl-arm64NuGet>=9.0.0, <9.0.1 || >=8.0.0, <8.0.129.0.1, 8.0.12
Microsoft.NetCore.App.Runtime.linux-musl-x64NuGet>=9.0.0, <9.0.1 || >=8.0.0, <8.0.129.0.1, 8.0.12
Microsoft.NetCore.App.Runtime.linux-x64NuGet>=9.0.0, <9.0.1 || >=8.0.0, <8.0.129.0.1, 8.0.12
Microsoft.NetCore.App.Runtime.osx-arm64NuGet>=9.0.0, <9.0.1 || >=8.0.0, <8.0.129.0.1, 8.0.12
Microsoft.NetCore.App.Runtime.osx-x64NuGet>=9.0.0, <9.0.1 || >=8.0.0, <8.0.129.0.1, 8.0.12
Microsoft.NetCore.App.Runtime.win-armNuGet>=9.0.0, <9.0.1 || >=8.0.0, <8.0.129.0.1, 8.0.12
Microsoft.NetCore.App.Runtime.win-arm64NuGet>=9.0.0, <9.0.1 || >=8.0.0, <8.0.129.0.1, 8.0.12
Microsoft.NetCore.App.Runtime.win-x64NuGet>=9.0.0, <9.0.1 || >=8.0.0, <8.0.129.0.1, 8.0.12
Microsoft.NetCore.App.Runtime.win-x86NuGet>=9.0.0, <9.0.19.0.1
Identifiers
GHSA-jjcv-wr2g-4rv4 · BIT-dotnet-2025-21172 · BIT-dotnet-sdk-2025-21172 · CVE-2025-21172
Weakness (CWE)
CWE-122 · CWE-190
Tags
Published
14 Jan 2025
Updated
10 Sept 2026

Machine-written summary

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

Microsoft.NetCore.App.Runtime packages for .NET 8.0 before 8.0.12 and .NET 9.0 before 9.0.1 are affected by a remote code execution vulnerability. An attacker could exploit it by getting a user to load a specially crafted file in Visual Studio. Upgrade to version 8.0.12 or 9.0.1 or later, as appropriate.

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:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C CNA (microsoft)
  • CISA KEV Not listed.
  • EPSS 0.018, the 79th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 14 Jan 2025, 18:21 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.