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TI-2025-34970 Aliases CVE-2025-55315GHSA-5rrx-jjjq-q2r5

ASP.NET Security Feature Bypass Vulnerability

Priority HIGH 79CWE-444Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · Low
Fix status
Partial Red Hat: 10 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub, Red Hat and Microsoft. Impact type from Microsoft.

Summary

Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an authorized attacker to bypass a security feature over a network.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.67162 99th percentileScored 2026-11-07
Fix Partial Microsoft.AspNetCore.Server.Kestrel.Core (NuGet): 2.3.6Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet): 10.0.0-rc.2.25502.107, 9.0.10, 8.0.21+11 more productsRed Hat: 10 advisoriesMicrosoft: 2 updatesRed Hat: 10 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftASP.NET Core 2.32.3 to before 2.3.62.3.6Patch availableCNA
MicrosoftASP.NET Core 8.08.0 to before 8.0.218.0.21Patch availableCNA
MicrosoftASP.NET Core 9.09.0 to before 9.0.109.0.10Patch availableCNA
MicrosoftMicrosoft Visual Studio 2022 version 17.1017.10.0 to before 17.10.2017.10.20Patch availableCNA
MicrosoftMicrosoft Visual Studio 2022 version 17.1217.12.0 to before 17.12.1317.12.13Patch availableCNA
MicrosoftMicrosoft Visual Studio 2022 version 17.1417.14.0 to before 17.14.1717.14.17Patch availableCNA
—Microsoft.AspNetCore.Server.Kestrel.Core (NuGet)before 2.3.62.3.6Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet)10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.10710.0.0-rc.2.25502.107Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-arm64 (NuGet)10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.10710.0.0-rc.2.25502.107Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-musl-arm (NuGet)10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.10710.0.0-rc.2.25502.107Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 (NuGet)10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.10710.0.0-rc.2.25502.107Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-musl-x64 (NuGet)10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.10710.0.0-rc.2.25502.107Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-x64 (NuGet)10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.10710.0.0-rc.2.25502.107Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.osx-arm64 (NuGet)10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.10710.0.0-rc.2.25502.107Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.osx-x64 (NuGet)10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.10710.0.0-rc.2.25502.107Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.win-arm (NuGet)10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.10710.0.0-rc.2.25502.107Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.win-arm64 (NuGet)10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.10710.0.0-rc.2.25502.107Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet)10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.10710.0.0-rc.2.25502.107Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.win-x86 (NuGet)10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.10710.0.0-rc.2.25502.107Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet)9.0.0 to before 9.0.109.0.10Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-arm64 (NuGet)9.0.0 to before 9.0.109.0.10Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-musl-arm (NuGet)9.0.0 to before 9.0.109.0.10Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 (NuGet)9.0.0 to before 9.0.109.0.10Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-musl-x64 (NuGet)9.0.0 to before 9.0.109.0.10Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-x64 (NuGet)9.0.0 to before 9.0.109.0.10Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.osx-arm64 (NuGet)9.0.0 to before 9.0.109.0.10Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.osx-x64 (NuGet)9.0.0 to before 9.0.109.0.10Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.win-arm (NuGet)9.0.0 to before 9.0.109.0.10Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.win-arm64 (NuGet)9.0.0 to before 9.0.109.0.10Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet)9.0.0 to before 9.0.109.0.10Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.win-x86 (NuGet)9.0.0 to before 9.0.109.0.10Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet)8.0.0 to before 8.0.218.0.21Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-arm64 (NuGet)8.0.0 to before 8.0.218.0.21Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-musl-arm (NuGet)8.0.0 to before 8.0.218.0.21Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 (NuGet)8.0.0 to before 8.0.218.0.21Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-musl-x64 (NuGet)8.0.0 to before 8.0.218.0.21Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.linux-x64 (NuGet)8.0.0 to before 8.0.218.0.21Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.osx-arm64 (NuGet)8.0.0 to before 8.0.218.0.21Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.osx-x64 (NuGet)8.0.0 to before 8.0.218.0.21Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.win-arm (NuGet)8.0.0 to before 8.0.218.0.21Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.win-arm64 (NuGet)8.0.0 to before 8.0.218.0.21Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet)8.0.0 to before 8.0.218.0.21Patch availableGHSA-5rrx-jjjq-q2r5
—Microsoft.AspNetCore.App.Runtime.win-x86 (NuGet)8.0.0 to before 8.0.218.0.21Patch availableGHSA-5rrx-jjjq-q2r5
  • ASP.NET Core 2.3 VendorMicrosoft Affected 2.3 to before 2.3.6 Fixed in 2.3.6 Patch available CNA
  • ASP.NET Core 8.0 VendorMicrosoft Affected 8.0 to before 8.0.21 Fixed in 8.0.21 Patch available CNA
  • ASP.NET Core 9.0 VendorMicrosoft Affected 9.0 to before 9.0.10 Fixed in 9.0.10 Patch available CNA
  • Microsoft Visual Studio 2022 version 17.10 VendorMicrosoft Affected 17.10.0 to before 17.10.20 Fixed in 17.10.20 Patch available CNA
  • Microsoft Visual Studio 2022 version 17.12 VendorMicrosoft Affected 17.12.0 to before 17.12.13 Fixed in 17.12.13 Patch available CNA
  • Microsoft Visual Studio 2022 version 17.14 VendorMicrosoft Affected 17.14.0 to before 17.14.17 Fixed in 17.14.17 Patch available CNA
  • Microsoft.AspNetCore.Server.Kestrel.Core (NuGet) Vendor— Affected before 2.3.6 Fixed in 2.3.6 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet) Vendor— Affected 10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.107 Fixed in 10.0.0-rc.2.25502.107 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-arm64 (NuGet) Vendor— Affected 10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.107 Fixed in 10.0.0-rc.2.25502.107 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-musl-arm (NuGet) Vendor— Affected 10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.107 Fixed in 10.0.0-rc.2.25502.107 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 (NuGet) Vendor— Affected 10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.107 Fixed in 10.0.0-rc.2.25502.107 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-musl-x64 (NuGet) Vendor— Affected 10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.107 Fixed in 10.0.0-rc.2.25502.107 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-x64 (NuGet) Vendor— Affected 10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.107 Fixed in 10.0.0-rc.2.25502.107 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.osx-arm64 (NuGet) Vendor— Affected 10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.107 Fixed in 10.0.0-rc.2.25502.107 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.osx-x64 (NuGet) Vendor— Affected 10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.107 Fixed in 10.0.0-rc.2.25502.107 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.win-arm (NuGet) Vendor— Affected 10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.107 Fixed in 10.0.0-rc.2.25502.107 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.win-arm64 (NuGet) Vendor— Affected 10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.107 Fixed in 10.0.0-rc.2.25502.107 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet) Vendor— Affected 10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.107 Fixed in 10.0.0-rc.2.25502.107 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.win-x86 (NuGet) Vendor— Affected 10.0.0-rc.1.25451.107 to before 10.0.0-rc.2.25502.107 Fixed in 10.0.0-rc.2.25502.107 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet) Vendor— Affected 9.0.0 to before 9.0.10 Fixed in 9.0.10 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-arm64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.10 Fixed in 9.0.10 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-musl-arm (NuGet) Vendor— Affected 9.0.0 to before 9.0.10 Fixed in 9.0.10 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.10 Fixed in 9.0.10 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-musl-x64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.10 Fixed in 9.0.10 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-x64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.10 Fixed in 9.0.10 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.osx-arm64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.10 Fixed in 9.0.10 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.osx-x64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.10 Fixed in 9.0.10 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.win-arm (NuGet) Vendor— Affected 9.0.0 to before 9.0.10 Fixed in 9.0.10 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.win-arm64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.10 Fixed in 9.0.10 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.10 Fixed in 9.0.10 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.win-x86 (NuGet) Vendor— Affected 9.0.0 to before 9.0.10 Fixed in 9.0.10 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet) Vendor— Affected 8.0.0 to before 8.0.21 Fixed in 8.0.21 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-arm64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.21 Fixed in 8.0.21 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-musl-arm (NuGet) Vendor— Affected 8.0.0 to before 8.0.21 Fixed in 8.0.21 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.21 Fixed in 8.0.21 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-musl-x64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.21 Fixed in 8.0.21 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.linux-x64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.21 Fixed in 8.0.21 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.osx-arm64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.21 Fixed in 8.0.21 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.osx-x64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.21 Fixed in 8.0.21 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.win-arm (NuGet) Vendor— Affected 8.0.0 to before 8.0.21 Fixed in 8.0.21 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.win-arm64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.21 Fixed in 8.0.21 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.21 Fixed in 8.0.21 Patch available GHSA-5rrx-jjjq-q2r5
  • Microsoft.AspNetCore.App.Runtime.win-x86 (NuGet) Vendor— Affected 8.0.0 to before 8.0.21 Fixed in 8.0.21 Patch available GHSA-5rrx-jjjq-q2r5

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*2.3.0 to before 2.3.6; 8.0.0 to before 8.0.21; 9.0.0 to before 9.0.10VulnerableMicrosoft
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*17.10.0 to before 17.10.20; 17.12.10 to before 17.12.13; 17.14.0 to before 17.14.17VulnerableMicrosoft
  • cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:* Versions 2.3.0 to before 2.3.6; 8.0.0 to before 8.0.21; 9.0.0 to before 9.0.10 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* Versions 17.10.0 to before 17.10.20; 17.12.10 to before 17.12.13; 17.14.0 to before 17.14.17 Vulnerable ·Microsoft

Remediation

  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.Server.Kestrel.Core (NuGet) Fixed in 2.3.6 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet) Fixed in 10.0.0-rc.2.25502.107 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-arm64 (NuGet) Fixed in 10.0.0-rc.2.25502.107 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-musl-arm (NuGet) Fixed in 10.0.0-rc.2.25502.107 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 (NuGet) Fixed in 10.0.0-rc.2.25502.107 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-musl-x64 (NuGet) Fixed in 10.0.0-rc.2.25502.107 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-x64 (NuGet) Fixed in 10.0.0-rc.2.25502.107 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.osx-arm64 (NuGet) Fixed in 10.0.0-rc.2.25502.107 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.osx-x64 (NuGet) Fixed in 10.0.0-rc.2.25502.107 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.win-arm (NuGet) Fixed in 10.0.0-rc.2.25502.107 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.win-arm64 (NuGet) Fixed in 10.0.0-rc.2.25502.107 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet) Fixed in 10.0.0-rc.2.25502.107 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.win-x86 (NuGet) Fixed in 10.0.0-rc.2.25502.107 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet) Fixed in 9.0.10 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-arm64 (NuGet) Fixed in 9.0.10 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-musl-arm (NuGet) Fixed in 9.0.10 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 (NuGet) Fixed in 9.0.10 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-musl-x64 (NuGet) Fixed in 9.0.10 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-x64 (NuGet) Fixed in 9.0.10 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.osx-arm64 (NuGet) Fixed in 9.0.10 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.osx-x64 (NuGet) Fixed in 9.0.10 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.win-arm (NuGet) Fixed in 9.0.10 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.win-arm64 (NuGet) Fixed in 9.0.10 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet) Fixed in 9.0.10 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.win-x86 (NuGet) Fixed in 9.0.10 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet) Fixed in 8.0.21 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-arm64 (NuGet) Fixed in 8.0.21 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-musl-arm (NuGet) Fixed in 8.0.21 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 (NuGet) Fixed in 8.0.21 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-musl-x64 (NuGet) Fixed in 8.0.21 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.linux-x64 (NuGet) Fixed in 8.0.21 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.osx-arm64 (NuGet) Fixed in 8.0.21 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.osx-x64 (NuGet) Fixed in 8.0.21 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.win-arm (NuGet) Fixed in 8.0.21 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.win-arm64 (NuGet) Fixed in 8.0.21 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet) Fixed in 8.0.21 Advisory →
  • Fix · GHSA-5rrx-jjjq-q2r5 Microsoft.AspNetCore.App.Runtime.win-x86 (NuGet) Fixed in 8.0.21 Advisory →

Red Hat 10 advisories

  • RHSA-2026:9205 Released 2026-04-21 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images dotnet9.0-9.0.116-1.hum1@src
  • RHSA-2026:9080 Released 2026-04-20 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images dotnet8.0-8.0.126-1.hum1@src
  • RHSA-2025:23225 Released 2025-12-15 · Red Hat rating Critical
    Red Hat OpenShift Dev Spaces 3.25.0 Release.
    • Red Hat OpenShift Dev Spaces (RHOSDS) 3.25 registry.redhat.io/devspaces/code-rhel9, registry.redhat.io/devspaces/openvsx-rhel9, registry.redhat.io/devspaces/pluginregistry-rhel9 +3
Show 7 more Red Hat advisories
  • RHSA-2025:18256 Released 2025-10-16 · Red Hat rating Important
    .NET 8.0 security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) dotnet-sdk-8.0-source-built-artifacts-8.0.121-1.el9_4
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) aspnetcore-runtime-8.0-8.0.21-1.el9_4, aspnetcore-runtime-dbg-8.0-8.0.21-1.el9_4, aspnetcore-targeting-pack-8.0-8.0.21-1.el9_4 +11
  • RHSA-2025:18151 Released 2025-10-15 · Red Hat rating Important
    .NET 9.0 security update
    • Red Hat Enterprise Linux AppStream (v. 9) aspnetcore-runtime-9.0-9.0.10-1.el9_6, aspnetcore-runtime-dbg-9.0-9.0.10-1.el9_6, aspnetcore-targeting-pack-9.0-9.0.10-1.el9_6 +12
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) dotnet-sdk-9.0-source-built-artifacts-9.0.111-1.el9_6
  • RHSA-2025:18150 Released 2025-10-15 · Red Hat rating Important
    .NET 9.0 security update
    • Red Hat Enterprise Linux AppStream (v. 8) aspnetcore-runtime-9.0-9.0.10-1.el8_10, aspnetcore-runtime-dbg-9.0-9.0.10-1.el8_10, aspnetcore-targeting-pack-9.0-9.0.10-1.el8_10 +13
    • Red Hat Enterprise Linux CRB (v. 8) dotnet-sdk-9.0-source-built-artifacts-9.0.111-1.el8_10
  • RHSA-2025:18153 Released 2025-10-15 · Red Hat rating Important
    .NET 9.0 security update
    • Red Hat Enterprise Linux AppStream (v. 10) aspnetcore-runtime-9.0-9.0.10-1.el10_0, aspnetcore-runtime-dbg-9.0-9.0.10-1.el10_0, aspnetcore-targeting-pack-9.0-9.0.10-1.el10_0 +12
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) dotnet-sdk-9.0-source-built-artifacts-9.0.111-1.el10_0
  • RHSA-2025:18152 Released 2025-10-15 · Red Hat rating Important
    .NET 8.0 security update
    • Red Hat Enterprise Linux AppStream (v. 10) aspnetcore-runtime-8.0-8.0.21-1.el10_0, aspnetcore-runtime-dbg-8.0-8.0.21-1.el10_0, aspnetcore-targeting-pack-8.0-8.0.21-1.el10_0 +9
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) dotnet-sdk-8.0-source-built-artifacts-8.0.121-1.el10_0
  • RHSA-2025:18149 Released 2025-10-15 · Red Hat rating Important
    .NET 8.0 security update
    • Red Hat Enterprise Linux AppStream (v. 9) aspnetcore-runtime-8.0-8.0.21-1.el9_6, aspnetcore-runtime-dbg-8.0-8.0.21-1.el9_6, aspnetcore-targeting-pack-8.0-8.0.21-1.el9_6 +9
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) dotnet-sdk-8.0-source-built-artifacts-8.0.121-1.el9_6
  • RHSA-2025:18148 Released 2025-10-15 · Red Hat rating Important
    .NET 8.0 security update
    • Red Hat Enterprise Linux AppStream (v. 8) aspnetcore-runtime-8.0-8.0.21-1.el8_10, aspnetcore-runtime-dbg-8.0-8.0.21-1.el8_10, aspnetcore-targeting-pack-8.0-8.0.21-1.el8_10 +9
    • Red Hat Enterprise Linux CRB (v. 8) dotnet-sdk-8.0-source-built-artifacts-8.0.121-1.el8_10

Microsoft 2 updates

  • Security Update
    • .NET 9.0 installed on Linux 9.0.10
    • .NET 9.0 installed on Mac OS 9.0.10
    • .NET 9.0 installed on Windows 9.0.10
    • ASP.NET Core 9.0 9.0.10
  • Security Update
    • .NET 8.0 installed on Linux 8.0.21
    • .NET 8.0 installed on Mac OS 8.0.21
    • .NET 8.0 installed on Windows 8.0.21
    • ASP.NET Core 8.0 8.0.21

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 9AffectedNo fix planned: Out of support scope
Red Hat CodeReady Linux Builder EUS (v.9.4)Fixed RHSA-2025:18256
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2025:18152, RHSA-2025:18153
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2025:18148, RHSA-2025:18150
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:18149, RHSA-2025:18151
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2025:18256
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2025:18148, RHSA-2025:18150
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2025:18152, RHSA-2025:18153
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:18149, RHSA-2025:18151
Red Hat Hardened ImagesFixed RHSA-2026:9080, RHSA-2026:9205
Red Hat OpenShift Dev Spaces (RHOSDS) 3.25Fixed RHSA-2025:23225
Not affected: 2 products
  • Red Hat Hardened Images
  • Red Hat OpenShift Dev Spaces (RHOSDS) 3.25

Microsoft

Microsoft's page for this CVE →

Impact
Security Feature Bypass
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
ASP.NET Core 2.3Fixed 2.3.6 · Security Update
Microsoft Visual Studio 2022 version 17.10Fixed 17.10.20 · Security Update
Microsoft Visual Studio 2022 version 17.12Fixed 17.12.13 · Security Update
Microsoft Visual Studio 2022 version 17.14Fixed 17.14.17 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-55315
  2. 2026-10-03 Alias added: GHSA-5rrx-jjjq-q2r5

References

  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2023-19596 .NET and Visual Studio Denial of Service Vulnerability KEVCVSS 3.1HIGH 7.5
  • TI-2024-14164 .NET Denial of Service Vulnerability CVSS 3.1HIGH 7.5
  • TI-2023-18092 ASP.NET Core Denial of Service Vulnerability CVSS 3.1HIGH 8.2
  • TI-2023-18392 ASP.NET Core Security Feature Bypass Vulnerability CVSS 3.1MEDIUM 6.2
  • TI-2026-29147 ASP.NET Core Elevation of Privilege Vulnerability CVSS 3.1CRITICAL 9.1
See all 40 →

Sources