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Microsoft.AspNetCore.Server.Kestrel.Core

4 known vulnerabilities (1 critical, 1 high), with the versions each affects and the releases that fix them.

Latest release
2.3.13 (Sep 8, 2026): no advisory affects it
Newest unaffected release
2.3.13 (Sep 8, 2026), the latest release
Advisories
4 · 1 critical, 1 high
Releases
29 since 2.0.0 (Aug 11, 2017)
Registry
NuGet
Releases read
Nov 8, 2026

Version timeline

Every release cve.now has on record, lowest version on the left; each bar is a run of versions an advisory affects.

Advisories 4

  • CVE-2025-55315Critical 9.9

    ASP.NET Security Feature Bypass Vulnerability

    Affected: fixed in 2.3.6.

    Fixed in 2.3.6 (released Oct 14, 2025, the day of disclosure).

    The latest release, 2.3.13, is not affected.

  • ASP.NET Core and Visual Studio Denial of Service Vulnerability

    Affected: fixed in 2.1.25.

    Fixed in 2.1.25 (released Feb 9, 2021, 28 days after disclosure).

    The latest release, 2.3.13, is not affected.

  • A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka "ASP.NET Core Denial of Service…

    Affected: from 2.1.0, fixed in 2.1.7.

    Fixed in 2.1.7 (released Jan 8, 2019, the day of disclosure).

    The latest release, 2.3.13, is not affected.

  • ASP.NET Core 1.0.

    Affected: from 2.0.0, fixed in 2.0.2.

    Fixed in 2.0.2 (released Mar 13, 2018, 1 day before disclosure).

    The latest release, 2.3.13, is not affected.