Evidence used
- No CISA KEV confirmation is currently recorded.
- A structured source references public exploit or proof-of-concept material.
- EPSS is 65.94% for the current model date.
BlackTreeCVE IntelligenceMicrosoft · ASP.NET Core 2.3
Critical technical impact and a public exploit reference; no CISA KEV confirmation is currently recorded.
Alpine, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.
A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.
| Distribution release | Source package | Vendor state | Fixed version | Evidence |
|---|---|---|---|---|
| Alpine v3.23v3.23 · community | dotnet8-runtime | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 8.0.21-r0 | Alpine Security Database ↗Source updated 11 Sep 2026 |
| Alpine v3.23v3.23 · community | dotnet9-runtime | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 9.0.10-r0 | Alpine Security Database ↗Source updated 11 Sep 2026 |
| Alpine v3.22v3.22 · community | dotnet8-runtime | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 8.0.21-r0 | Alpine Security Database ↗Source updated 11 Sep 2026 |
| Alpine v3.22v3.22 · community | dotnet9-runtime | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 9.0.10-r0 | Alpine Security Database ↗Source updated 11 Sep 2026 |
| Alpine v3.21v3.21 · community | dotnet8-runtime | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 8.0.21-r0 | Alpine Security Database ↗Source updated 19 Aug 2026 |
| Alpine v3.21v3.21 · community | dotnet9-runtime | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 9.0.10-r0 | Alpine Security Database ↗Source updated 19 Aug 2026 |
| Ubuntu 24.04 LTSnoble · standard archive | dotnet10 | Vendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree. | 10.0.100-10.0.0-0ubuntu1~24.04.1 | Canonical Ubuntu Security ↗Source updated 5 Oct 2026 |
| Ubuntu 24.04 LTSnoble · standard archive | dotnet8 | Vendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree. | 8.0.121-8.0.21-0ubuntu1~24.04.1 | Canonical Ubuntu Security ↗Source updated 5 Oct 2026 |
These OSV and GitHub advisory ranges apply only to the named package and ecosystem. A listed fixed version is not a universal product patch or proof that an update is installed.
| Ecosystem and package | Affected range | First fixed version | Evidence |
|---|---|---|---|
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm | ECOSYSTEM: introduced 10.0.0-rc.1.25451.107; fixed 10.0.0-rc.2.25502.107 | 10.0.0-rc.2.25502.107 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm | ECOSYSTEM: introduced 9.0.0; fixed 9.0.10 | 9.0.10 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm | ECOSYSTEM: introduced 8.0.0; fixed 8.0.21 | 8.0.21 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm64 | ECOSYSTEM: introduced 10.0.0-rc.1.25451.107; fixed 10.0.0-rc.2.25502.107 | 10.0.0-rc.2.25502.107 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm64 | ECOSYSTEM: introduced 9.0.0; fixed 9.0.10 | 9.0.10 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-arm64 | ECOSYSTEM: introduced 8.0.0; fixed 8.0.21 | 8.0.21 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm | ECOSYSTEM: introduced 10.0.0-rc.1.25451.107; fixed 10.0.0-rc.2.25502.107 | 10.0.0-rc.2.25502.107 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm | ECOSYSTEM: introduced 9.0.0; fixed 9.0.10 | 9.0.10 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm | ECOSYSTEM: introduced 8.0.0; fixed 8.0.21 | 8.0.21 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64 | ECOSYSTEM: introduced 10.0.0-rc.1.25451.107; fixed 10.0.0-rc.2.25502.107 | 10.0.0-rc.2.25502.107 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64 | ECOSYSTEM: introduced 9.0.0; fixed 9.0.10 | 9.0.10 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64 | ECOSYSTEM: introduced 8.0.0; fixed 8.0.21 | 8.0.21 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64 | ECOSYSTEM: introduced 10.0.0-rc.1.25451.107; fixed 10.0.0-rc.2.25502.107 | 10.0.0-rc.2.25502.107 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64 | ECOSYSTEM: introduced 9.0.0; fixed 9.0.10 | 9.0.10 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64 | ECOSYSTEM: introduced 8.0.0; fixed 8.0.21 | 8.0.21 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-x64 | ECOSYSTEM: introduced 10.0.0-rc.1.25451.107; fixed 10.0.0-rc.2.25502.107 | 10.0.0-rc.2.25502.107 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-x64 | ECOSYSTEM: introduced 9.0.0; fixed 9.0.10 | 9.0.10 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.linux-x64 | ECOSYSTEM: introduced 8.0.0; fixed 8.0.21 | 8.0.21 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.osx-arm64 | ECOSYSTEM: introduced 10.0.0-rc.1.25451.107; fixed 10.0.0-rc.2.25502.107 | 10.0.0-rc.2.25502.107 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.osx-arm64 | ECOSYSTEM: introduced 9.0.0; fixed 9.0.10 | 9.0.10 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.osx-arm64 | ECOSYSTEM: introduced 8.0.0; fixed 8.0.21 | 8.0.21 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.osx-x64 | ECOSYSTEM: introduced 10.0.0-rc.1.25451.107; fixed 10.0.0-rc.2.25502.107 | 10.0.0-rc.2.25502.107 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.osx-x64 | ECOSYSTEM: introduced 9.0.0; fixed 9.0.10 | 9.0.10 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.osx-x64 | ECOSYSTEM: introduced 8.0.0; fixed 8.0.21 | 8.0.21 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.win-arm | ECOSYSTEM: introduced 10.0.0-rc.1.25451.107; fixed 10.0.0-rc.2.25502.107 | 10.0.0-rc.2.25502.107 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.win-arm | ECOSYSTEM: introduced 9.0.0; fixed 9.0.10 | 9.0.10 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.win-arm | ECOSYSTEM: introduced 8.0.0; fixed 8.0.21 | 8.0.21 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.win-arm64 | ECOSYSTEM: introduced 10.0.0-rc.1.25451.107; fixed 10.0.0-rc.2.25502.107 | 10.0.0-rc.2.25502.107 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.win-arm64 | ECOSYSTEM: introduced 9.0.0; fixed 9.0.10 | 9.0.10 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.win-arm64 | ECOSYSTEM: introduced 8.0.0; fixed 8.0.21 | 8.0.21 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.win-x64 | ECOSYSTEM: introduced 10.0.0-rc.1.25451.107; fixed 10.0.0-rc.2.25502.107 | 10.0.0-rc.2.25502.107 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.win-x64 | ECOSYSTEM: introduced 9.0.0; fixed 9.0.10 | 9.0.10 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.win-x64 | ECOSYSTEM: introduced 8.0.0; fixed 8.0.21 | 8.0.21 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.win-x86 | ECOSYSTEM: introduced 10.0.0-rc.1.25451.107; fixed 10.0.0-rc.2.25502.107 | 10.0.0-rc.2.25502.107 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.win-x86 | ECOSYSTEM: introduced 9.0.0; fixed 9.0.10 | 9.0.10 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.App.Runtime.win-x86 | ECOSYSTEM: introduced 8.0.0; fixed 8.0.21 | 8.0.21 | OSV record ↗aggregator derived · 10 Sep 2026 |
| NuGetMicrosoft.AspNetCore.Server.Kestrel.Core | ECOSYSTEM: introduced 0; fixed 2.3.6 | 2.3.6 | OSV record ↗aggregator derived · 10 Sep 2026 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-arm | = 10.0.0-rc.1.25451.107 | 10.0.0-rc.2.25502.107 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-arm | >= 9.0.0, <= 9.0.9 | 9.0.10 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-arm | >= 8.0.0, <= 8.0.20 | 8.0.21 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-arm64 | = 10.0.0-rc.1.25451.107 | 10.0.0-rc.2.25502.107 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-arm64 | >= 9.0.0, <= 9.0.9 | 9.0.10 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-arm64 | >= 8.0.0, <= 8.0.20 | 8.0.21 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm | = 10.0.0-rc.1.25451.107 | 10.0.0-rc.2.25502.107 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm | >= 9.0.0, <= 9.0.9 | 9.0.10 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm | >= 8.0.0, <= 8.0.20 | 8.0.21 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64 | = 10.0.0-rc.1.25451.107 | 10.0.0-rc.2.25502.107 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64 | >= 9.0.0, <= 9.0.9 | 9.0.10 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64 | >= 8.0.0, <= 8.0.20 | 8.0.21 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64 | = 10.0.0-rc.1.25451.107 | 10.0.0-rc.2.25502.107 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64 | >= 9.0.0, <= 9.0.9 | 9.0.10 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64 | >= 8.0.0, <= 8.0.20 | 8.0.21 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-x64 | = 10.0.0-rc.1.25451.107 | 10.0.0-rc.2.25502.107 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-x64 | >= 9.0.0, <= 9.0.9 | 9.0.10 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.linux-x64 | >= 8.0.0, <= 8.0.20 | 8.0.21 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.osx-arm64 | = 10.0.0-rc.1.25451.107 | 10.0.0-rc.2.25502.107 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.osx-arm64 | >= 9.0.0, <= 9.0.9 | 9.0.10 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.osx-arm64 | >= 8.0.0, <= 8.0.20 | 8.0.21 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.osx-x64 | = 10.0.0-rc.1.25451.107 | 10.0.0-rc.2.25502.107 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.osx-x64 | >= 9.0.0, <= 9.0.9 | 9.0.10 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.osx-x64 | >= 8.0.0, <= 8.0.20 | 8.0.21 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.win-arm | = 10.0.0-rc.1.25451.107 | 10.0.0-rc.2.25502.107 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.win-arm | >= 9.0.0, <= 9.0.9 | 9.0.10 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.win-arm | >= 8.0.0, <= 8.0.20 | 8.0.21 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.win-arm64 | = 10.0.0-rc.1.25451.107 | 10.0.0-rc.2.25502.107 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.win-arm64 | >= 9.0.0, <= 9.0.9 | 9.0.10 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.win-arm64 | >= 8.0.0, <= 8.0.20 | 8.0.21 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.win-x64 | = 10.0.0-rc.1.25451.107 | 10.0.0-rc.2.25502.107 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.win-x64 | >= 9.0.0, <= 9.0.9 | 9.0.10 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.win-x64 | >= 8.0.0, <= 8.0.20 | 8.0.21 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.win-x86 | = 10.0.0-rc.1.25451.107 | 10.0.0-rc.2.25502.107 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.win-x86 | >= 9.0.0, <= 9.0.9 | 9.0.10 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.App.Runtime.win-x86 | >= 8.0.0, <= 8.0.20 | 8.0.21 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
| nugetMicrosoft.AspNetCore.Server.Kestrel.Core | <= 2.3.0 | 2.3.6 | GitHub advisory ↗upstream repository advisory · 21 Oct 2025 |
Critical technical impact and a public exploit reference; no CISA KEV confirmation is currently recorded.
Patch availableInconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an authorized attacker to bypass a security feature over a network.
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.
The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.
An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
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.
The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.
An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
CISA Vulnrichment records proof-of-concept exploitation in its SSVC data. BlackTree has not independently executed or validated exploit material.
CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling'). The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L/E:U/RL:O/RC:CCommon Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
Operational remediation based on structured source evidence.
Published 14 Oct 2025 · Last source change 22 Feb 2026, 17:24 UTC · CWE-444 · Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Core structured fields are present and their contributing authorities are shown above.