High severity7.5NVD Advisory· Published Mar 10, 2026· Updated Apr 1, 2026
CVE-2026-26127
CVE-2026-26127
Description
Out-of-bounds read in .NET allows an unauthorized attacker to deny service over a network.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
Microsoft.Bcl.MemoryNuGet | >= 9.0.0, < 9.0.14 | 9.0.14 |
Microsoft.NetCore.App.Runtime.linux-armNuGet | >= 9.0.0, < 9.0.14 | 9.0.14 |
Microsoft.NetCore.App.Runtime.linux-arm64NuGet | >= 9.0.0, < 9.0.14 | 9.0.14 |
Microsoft.NetCore.App.Runtime.linux-musl-armNuGet | >= 9.0.0, < 9.0.14 | 9.0.14 |
Microsoft.NetCore.App.Runtime.linux-musl-arm64NuGet | >= 9.0.0, < 9.0.14 | 9.0.14 |
Microsoft.NetCore.App.Runtime.linux-musl-x64NuGet | >= 9.0.0, < 9.0.14 | 9.0.14 |
Microsoft.NetCore.App.Runtime.linux-x64NuGet | >= 9.0.0, < 9.0.14 | 9.0.14 |
Microsoft.NetCore.App.Runtime.osx-arm64NuGet | >= 9.0.0, < 9.0.14 | 9.0.14 |
Microsoft.NetCore.App.Runtime.osx-x64NuGet | >= 9.0.0, < 9.0.14 | 9.0.14 |
Microsoft.NetCore.App.Runtime.win-armNuGet | >= 9.0.0, < 9.0.14 | 9.0.14 |
Microsoft.NetCore.App.Runtime.win-arm64NuGet | >= 9.0.0, < 9.0.14 | 9.0.14 |
Microsoft.NetCore.App.Runtime.win-x64NuGet | >= 9.0.0, < 9.0.14 | 9.0.14 |
Microsoft.NetCore.App.Runtime.win-x86NuGet | >= 9.0.0, < 9.0.14 | 9.0.14 |
Microsoft.Bcl.MemoryNuGet | >= 10.0.0, < 10.0.4 | 10.0.4 |
Microsoft.NetCore.App.Runtime.linux-armNuGet | >= 10.0.0, < 10.0.4 | 10.0.4 |
Microsoft.NetCore.App.Runtime.linux-arm64NuGet | >= 10.0.0, < 10.0.4 | 10.0.4 |
Microsoft.NetCore.App.Runtime.linux-musl-armNuGet | >= 10.0.0, < 10.0.4 | 10.0.4 |
Microsoft.NetCore.App.Runtime.linux-musl-arm64NuGet | >= 10.0.0, < 10.0.4 | 10.0.4 |
Microsoft.NetCore.App.Runtime.linux-musl-x64NuGet | >= 10.0.0, < 10.0.4 | 10.0.4 |
Microsoft.NetCore.App.Runtime.linux-x64NuGet | >= 10.0.0, < 10.0.4 | 10.0.4 |
Microsoft.NetCore.App.Runtime.osx-arm64NuGet | >= 10.0.0, < 10.0.4 | 10.0.4 |
Microsoft.NetCore.App.Runtime.osx-x64NuGet | >= 10.0.0, < 10.0.4 | 10.0.4 |
Microsoft.NetCore.App.Runtime.win-armNuGet | >= 10.0.0, < 10.0.4 | 10.0.4 |
Microsoft.NetCore.App.Runtime.win-x64NuGet | >= 10.0.0, < 10.0.4 | 10.0.4 |
Microsoft.NetCore.App.Runtime.win-x86NuGet | >= 10.0.0, < 10.0.4 | 10.0.4 |
Microsoft.NetCore.App.Runtime.win-arm64NuGet | >= 10.0.0, < 10.0.4 | 10.0.4 |
Affected products
2Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4- github.com/advisories/GHSA-73j8-2gch-69rqghsaADVISORY
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26127nvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-26127ghsaADVISORY
- github.com/dotnet/runtime/security/advisories/GHSA-73j8-2gch-69rqghsaWEB
News mentions
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