How severe is GHSA-6qmf-mmc7-6c2p?

GHSA-6qmf-mmc7-6c2p has a CVSS score of 7.1/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by GHSA-6qmf-mmc7-6c2p?

GHSA-6qmf-mmc7-6c2p affects the following packages: Microsoft.Build.NuGetSdkResolver (NuGet), NuGet.PackageManagement (NuGet), NuGet.PackageManagement (NuGet), NuGet.PackageManagement (NuGet), NuGet.PackageManagement (NuGet), NuGet.PackageManagement (NuGet), NuGet.PackageManagement (NuGet), Microsoft.Build.NuGetSdkResolver (NuGet), and 30 more. Ecosystems affected: NuGet.

How do I fix GHSA-6qmf-mmc7-6c2p?

No patched version of Microsoft.Build.NuGetSdkResolver has shipped for GHSA-6qmf-mmc7-6c2p yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

How do I detect GHSA-6qmf-mmc7-6c2p in my NuGet dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for Microsoft.Build.NuGetSdkResolver. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

How do I mitigate GHSA-6qmf-mmc7-6c2p if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How does O3 Security protect against GHSA-6qmf-mmc7-6c2p?

O3 pinpoints whether GHSA-6qmf-mmc7-6c2p is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Is GHSA-6qmf-mmc7-6c2p actively exploited in the wild?

No public exploit code has been indexed for GHSA-6qmf-mmc7-6c2p yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for GHSA-6qmf-mmc7-6c2p?

GHSA-6qmf-mmc7-6c2p has an EPSS (Exploit Prediction Scoring System) score of 1.1%, placing it in the 63th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is GHSA-6qmf-mmc7-6c2p?

GHSA-6qmf-mmc7-6c2p is classified as CWE-367 (CWE-367). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was GHSA-6qmf-mmc7-6c2p published, and has it been updated?

GHSA-6qmf-mmc7-6c2p was published on June 14, 2023 and was last updated on June 3, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

.NET NuGet

GHSA-6qmf-mmc7-6c2p

HIGH

NuGet Client Remote Code Execution Vulnerability

Also known asCVE-2023-29337

Published

Jun 14, 2023

Updated

Jun 3, 2024

Affected

38 pkgs

Patched

35 / 38

Exploits

None indexed

EPSS Exploitation Probability

via FIRST.org ↗

1.1%probability of exploitation in next 30 days

Lower Risk63th percentile+0.81%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

38 pkgs affected

.NETMicrosoft.Build.NuGetSdkResolver.NETNuGet.PackageManagement.NETNuGet.PackageManagement.NETNuGet.PackageManagement.NETNuGet.PackageManagement.NETNuGet.PackageManagement.NETNuGet.PackageManagement.NETMicrosoft.Build.NuGetSdkResolver+30 more

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects NuGet packages — download data is not available via public APIs for these ecosystems.

Description

Microsoft is releasing this security advisory to provide information about a vulnerability in .NET and NuGet on Linux. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

A vulnerability exists in .NET 6.0, .NET 7.0 and NuGet(nuget.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement) where a potential race condition that can lead to a symlink attack on Linux. Non-Linux platforms are not affected.

Affected software

This issue only affects Linux systems.

NuGet & NuGet Packages

Any NuGet.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement 6.6.0 version or earlier.
Any NuGet.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement 6.5.0 version or earlier.
Any NuGet.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement 6.4.1 version or earlier.
Any NuGet.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement 6.3.2 version or earlier.
Any NuGet.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement 6.2.3 version or earlier.
Any NuGet.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement 6.0.4 version or earlier.
Any NuGet.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement 5.11.4

.NET SDK(s)

Any .NET SDK 7.0.106 or earlier, or 7.0.303 or earlier
Any .NET SDK 6.0.117 or earlier, or 6.0.312 or earlier, or 6.0.409 or earlier.

Patches

To fix the issue, please install the latest version of .NET 6.0 or .NET 7.0 and NuGet (NuGet.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, NuGet.PackageManagement versions). If you have installed one or more .NET SDKs through Visual Studio, Visual Studio will prompt you to update Visual Studio, which will also update your .NET SDKs.

If you're using NuGet.exe 6.6.0 or lower, you should download and install 6.6.1 from https://dist.nuget.org/win-x86-commandline/v6.6.1/nuget.exe.
If you're using NuGet.exe 6.5.0 or lower, you should download and install 6.5.1 from https://dist.nuget.org/win-x86-commandline/v6.5.1/nuget.exe.
If you're using NuGet.exe 6.4.1 or lower, you should download and install 6.4.2 from https://dist.nuget.org/win-x86-commandline/v6.4.2/nuget.exe.
If you're using NuGet.exe 6.3.2 or lower, you should download and install 6.3.3 from https://dist.nuget.org/win-x86-commandline/v6.3.3/nuget.exe.
If you're using NuGet.exe 6.2.3 or lower, you should download and install 6.2.4 from https://dist.nuget.org/win-x86-commandline/v6.2.4/nuget.exe.
If you're using NuGet.exe 6.0.4 or lower, you should download and install 6.0.5 from https://dist.nuget.org/win-x86-commandline/v6.0.5/nuget.exe.
If you're using NuGet.exe 5.11.4 or lower, you should download and install 5.11.5 from https://dist.nuget.org/win-x86-commandline/v5.11.5/nuget.exe.
If you're using .NET 7.0, you should download and install Runtime 7.0.7 or SDK 7.0.107 or SDK 7.0.304 from https://dotnet.microsoft.com/download/dotnet-core/7.0.
If you're using .NET 7.0, you should download and install Runtime 7.0.7 or SDK 7.0.107 or SDK 7.0.304 from https://dotnet.microsoft.com/download/dotnet-core/7.0.
If you're using .NET 6.0, you should download and install Runtime 6.0.18 or SDK 6.0.118 or SDK 6.0.312 from https://dotnet.microsoft.com/download/dotnet-core/6.0.

Other details

Announcement for this issue can be found at https://github.com/NuGet/Announcements/issues/69

MSRC details for this can be found at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29337

Affected Packages

38 total 35 fixed

Ecosystem	Package	Vulnerable range	Fix
.NETNuGet	`Microsoft.Build.NuGetSdkResolver`	all versions	No fix
.NETNuGet	`NuGet.PackageManagement`	≥ 6.0.0&&< 6.0.5	6.0.5
.NETNuGet	`NuGet.PackageManagement`	≥ 6.2.0&&< 6.2.4	6.2.4
.NETNuGet	`NuGet.PackageManagement`	≥ 6.3.0&&< 6.3.3	6.3.3
.NETNuGet	`NuGet.PackageManagement`	≥ 6.4.0&&< 6.4.2	6.4.2
.NETNuGet	`NuGet.PackageManagement`	≥ 6.5.0&&< 6.5.1	6.5.1

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for Microsoft.Build.NuGetSdkResolver. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
No patched version of Microsoft.Build.NuGetSdkResolver has shipped for GHSA-6qmf-mmc7-6c2p yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-6qmf-mmc7-6c2p is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-6qmf-mmc7-6c2p. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Description Microsoft is releasing this security advisory to provide information about a vulnerability in .NET and NuGet on Linux. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A vulnerability exists in .NET 6.0, .NET 7.0 and NuGet(nuget.exe, NuGet.Protocol, NuGet.Common, NuGet.CommandLine, NuGet.Commands, Microsoft.Build.NuGetSdkResolver, NuGet.PackageManagement) where a potential race condition that can lead to a symlink attack on Linux. Non-Linux platforms are not affected. ### Affected software This issue onl

O3 Security · Impact-Aware SCA

Is GHSA-6qmf-mmc7-6c2p in your dependencies?

O3 detects GHSA-6qmf-mmc7-6c2p across NuGet dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my dependencies How O3 SCA works

GHSA-6qmf-mmc7-6c2p

EPSS Exploitation Probability

Blast Radius

Description

Description

Affected software

NuGet & NuGet Packages

.NET SDK(s)

Patches

Other details

Affected Packages

Detection & mitigation playbook

Detect

Fix

Workarounds

How O3 protects you

Frequently Asked Questions

Is GHSA-6qmf-mmc7-6c2p in your dependencies?