critical

CVE-2025-55315

NuGet · Microsoft.AspNetCore.Server.Kestrel.Core • NuGet · Microsoft.AspNetCore.App.Runtime.linux-arm • NuGet · Microsoft.AspNetCore.App.Runtime.linux-arm64 • NuGet · Microsoft.AspNetCore.App.Runtime.linux-musl-arm • NuGet · Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 • NuGet · Microsoft.AspNetCore.App.Runtime.linux-musl-x64 • NuGet · Microsoft.AspNetCore.App.Runtime.linux-x64 • NuGet · Microsoft.AspNetCore.App.Runtime.osx-arm64 • NuGet · Microsoft.AspNetCore.App.Runtime.osx-x64 • NuGet · Microsoft.AspNetCore.App.Runtime.win-arm • NuGet · Microsoft.AspNetCore.App.Runtime.win-arm64 • NuGet · Microsoft.AspNetCore.App.Runtime.win-x64 • NuGet · Microsoft.AspNetCore.App.Runtime.win-x86

Summary

Microsoft Security Advisory CVE-2025-55315: .NET Security Feature Bypass Vulnerability

Severity
critical
EPSS
66.3% (p99)
Also known as
GHSA-5rrx-jjjq-q2r5#Microsoft.AspNetCore.App.Runtime.linux-arm, GHSA-5rrx-jjjq-q2r5#Microsoft.AspNetCore.App.Runtime.linux-arm64, GHSA-5rrx-jjjq-q2r5#Microsoft.AspNetCore.App.Runtime.linux-musl-arm, GHSA-5rrx-jjjq-q2r5#Microsoft.AspNetCore.App.Runtime.linux-musl-arm64, GHSA-5rrx-jjjq-q2r5#Microsoft.AspNetCore.App.Runtime.linux-musl-x64, GHSA-5rrx-jjjq-q2r5#Microsoft.AspNetCore.App.Runtime.linux-x64, GHSA-5rrx-jjjq-q2r5#Microsoft.AspNetCore.App.Runtime.osx-arm64, GHSA-5rrx-jjjq-q2r5#Microsoft.AspNetCore.App.Runtime.osx-x64, GHSA-5rrx-jjjq-q2r5#Microsoft.AspNetCore.App.Runtime.win-arm, GHSA-5rrx-jjjq-q2r5#Microsoft.AspNetCore.App.Runtime.win-arm64, GHSA-5rrx-jjjq-q2r5#Microsoft.AspNetCore.App.Runtime.win-x64, GHSA-5rrx-jjjq-q2r5#Microsoft.AspNetCore.App.Runtime.win-x86, GHSA-5rrx-jjjq-q2r5#Microsoft.AspNetCore.Server.Kestrel.Core, BIT-aspnet-core-2025-55315
Published
2025-10-14

References

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.