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01 Record

CVE-2026-102870

ASP.NET Core Remote Code Execution Vulnerability

HighPUBLISHEDCNA: microsoft
CNA base score8.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
View raw JSON

02 Description

ASP.NET Core Remote Code Execution Vulnerability

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.90% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 59.5% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD analysis status
Undergoing Analysis. NVD last modified this record on 2026-10-25.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-10-13 19:01Z15 DAYS AGO
Last updated
2026-10-28 18:21Z20 HR AGO
Reserved
2026-09-29
Assigning CNA
microsoft
Record state
PUBLISHED
Severity
High (CVSS 8.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Weaknesses
  • CWE-94Improper Control of Generation of Code ('Code Injection')Base
Data version
5.2
Document digest
55c6a1678b690a00d35b833e7f171aea9531f7a2bb6ae86233ac68acfc888af7

05 Affected products

VendorProductVersionsPlatforms
Microsoft.NET 10.0 installed on Linux10.0.0 to < 10.0.403—
Microsoft.NET 10.0 installed on Mac OS10.0.0 to < 10.0.403—
Microsoft.NET 10.0 installed on Windows10.0.0 to < 10.0.403—
Microsoft.NET 11.0 installed on Linux11.0.0-preview.1 to < 11.0.100-rc.3—
Microsoft.NET 11.0 installed on Mac OS11.0.0-preview.1 to < 11.0.100-rc.3—
Microsoft.NET 11.0 installed on Windows11.0.0-preview.1 to < 11.0.100-rc.3—
MicrosoftMicrosoft Visual Studio 2019 version 16.1116.11.0 to < 16.11.61—
MicrosoftMicrosoft Visual Studio 2022 version 17.1417.14.0 to < 17.14.43—
MicrosoftMicrosoft Visual Studio 2026 version 18.1018.10.0 to < 18.10.4—
MicrosoftMicrosoft Visual Studio 2026 version 18.1118.11.0 to < 18.11.2—
MicrosoftMicrosoft Visual Studio 2026 version 18.1218.12.0 to < 18.12 Insiders 3—
MicrosoftMicrosoft.AspNetCore.Components.WebAssembly.DevServer11.0.0-preview.1 to < 10.0.14—
MicrosoftMicrosoft.AspNetCore.Components.WebAssembly.Server10.0.0 to < 10.0.13.NET 10.0 runtime installed on Linux, .NET 10.0 runtime installed on Mac OS, .NET 10.0 runtime installed on Windows, .NET 11.0 runtime installed on Linux, .NET 11.0 runtime installed on Mac OS, .NET 11.0 runtime installed on Windows

06 References

07 Fixed in

AlmaLinux 8

  • aspnetcore-runtime-10.0
    Fixed in 10.0.13-1.el8_10
  • aspnetcore-runtime-dbg-10.0
    Fixed in 10.0.13-1.el8_10
  • aspnetcore-targeting-pack-10.0
    Fixed in 10.0.13-1.el8_10
  • dotnet
    Fixed in 10.0.113-1.el8_10
  • dotnet-apphost-pack-10.0
    Fixed in 10.0.13-1.el8_10
  • dotnet-hostfxr-10.0
    Fixed in 10.0.13-1.el8_10
  • dotnet-runtime-10.0
    Fixed in 10.0.13-1.el8_10
  • dotnet-runtime-dbg-10.0
    Fixed in 10.0.13-1.el8_10
  • dotnet-sdk-10.0
    Fixed in 10.0.113-1.el8_10
  • dotnet-sdk-10.0-source-built-artifacts
    Fixed in 10.0.113-1.el8_10
  • dotnet-sdk-aot-10.0
    Fixed in 10.0.113-1.el8_10
  • dotnet-sdk-dbg-10.0
    Fixed in 10.0.113-1.el8_10
  • dotnet-targeting-pack-10.0
    Fixed in 10.0.13-1.el8_10
  • dotnet-templates-10.0
    Fixed in 10.0.113-1.el8_10

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • aspnetcore-runtime-10.0
    Fixed in 10.0.13-1.el9_8
  • aspnetcore-runtime-dbg-10.0
    Fixed in 10.0.13-1.el9_8
  • aspnetcore-targeting-pack-10.0
    Fixed in 10.0.13-1.el9_8
  • dotnet-apphost-pack-10.0
    Fixed in 10.0.13-1.el9_8
  • dotnet-host
    Fixed in 10.0.13-1.el9_8
  • dotnet-hostfxr-10.0
    Fixed in 10.0.13-1.el9_8
  • dotnet-runtime-10.0
    Fixed in 10.0.13-1.el9_8
  • dotnet-runtime-dbg-10.0
    Fixed in 10.0.13-1.el9_8
  • dotnet-sdk-10.0
    Fixed in 10.0.113-1.el9_8
  • dotnet-sdk-10.0-source-built-artifacts
    Fixed in 10.0.113-1.el9_8
  • dotnet-sdk-aot-10.0
    Fixed in 10.0.113-1.el9_8
  • dotnet-sdk-dbg-10.0
    Fixed in 10.0.113-1.el9_8
  • dotnet-targeting-pack-10.0
    Fixed in 10.0.13-1.el9_8
  • dotnet-templates-10.0
    Fixed in 10.0.113-1.el9_8

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 10

  • aspnetcore-runtime-10.0
    Fixed in 10.0.13-1.el10_2
  • aspnetcore-runtime-dbg-10.0
    Fixed in 10.0.13-1.el10_2
  • aspnetcore-targeting-pack-10.0
    Fixed in 10.0.13-1.el10_2
  • dotnet-apphost-pack-10.0
    Fixed in 10.0.13-1.el10_2
  • dotnet-host
    Fixed in 10.0.13-1.el10_2
  • dotnet-hostfxr-10.0
    Fixed in 10.0.13-1.el10_2
  • dotnet-runtime-10.0
    Fixed in 10.0.13-1.el10_2
  • dotnet-runtime-dbg-10.0
    Fixed in 10.0.13-1.el10_2
  • dotnet-sdk-10.0
    Fixed in 10.0.113-1.el10_2
  • dotnet-sdk-10.0-source-built-artifacts
    Fixed in 10.0.113-1.el10_2
  • dotnet-sdk-aot-10.0
    Fixed in 10.0.113-1.el10_2
  • dotnet-sdk-dbg-10.0
    Fixed in 10.0.113-1.el10_2
  • dotnet-targeting-pack-10.0
    Fixed in 10.0.13-1.el10_2
  • dotnet-templates-10.0
    Fixed in 10.0.113-1.el10_2

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • aspnetcore-runtime-10.0
    Fixed in 10.0.13-1.el8_10
  • aspnetcore-runtime-dbg-10.0
    Fixed in 10.0.13-1.el8_10
  • aspnetcore-targeting-pack-10.0
    Fixed in 10.0.13-1.el8_10
  • dotnet
    Fixed in 10.0.113-1.el8_10
  • dotnet-apphost-pack-10.0
    Fixed in 10.0.13-1.el8_10
  • dotnet-hostfxr-10.0
    Fixed in 10.0.13-1.el8_10
  • dotnet-runtime-10.0
    Fixed in 10.0.13-1.el8_10
  • dotnet-runtime-dbg-10.0
    Fixed in 10.0.13-1.el8_10
  • dotnet-sdk-10.0
    Fixed in 10.0.113-1.el8_10
  • dotnet-sdk-10.0-source-built-artifacts
    Fixed in 10.0.113-1.el8_10
  • dotnet-sdk-aot-10.0
    Fixed in 10.0.113-1.el8_10
  • dotnet-sdk-dbg-10.0
    Fixed in 10.0.113-1.el8_10
  • dotnet-targeting-pack-10.0
    Fixed in 10.0.13-1.el8_10
  • dotnet-templates-10.0
    Fixed in 10.0.113-1.el8_10

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • aspnetcore-runtime-10.0
    Fixed in 10.0.13-1.el9_8
  • aspnetcore-runtime-dbg-10.0
    Fixed in 10.0.13-1.el9_8
  • aspnetcore-targeting-pack-10.0
    Fixed in 10.0.13-1.el9_8
  • dotnet-apphost-pack-10.0
    Fixed in 10.0.13-1.el9_8
  • dotnet-host
    Fixed in 10.0.13-1.el9_8
  • dotnet-hostfxr-10.0
    Fixed in 10.0.13-1.el9_8
  • dotnet-runtime-10.0
    Fixed in 10.0.13-1.el9_8
  • dotnet-runtime-dbg-10.0
    Fixed in 10.0.13-1.el9_8
  • dotnet-sdk-10.0
    Fixed in 10.0.113-1.el9_8
  • dotnet-sdk-10.0-source-built-artifacts
    Fixed in 10.0.113-1.el9_8
  • dotnet-sdk-aot-10.0
    Fixed in 10.0.113-1.el9_8
  • dotnet-sdk-dbg-10.0
    Fixed in 10.0.113-1.el9_8
  • dotnet-targeting-pack-10.0
    Fixed in 10.0.13-1.el9_8
  • dotnet-templates-10.0
    Fixed in 10.0.113-1.el9_8

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 10

  • aspnetcore-runtime-10.0
    Fixed in 10.0.13-1.el10_2
  • aspnetcore-runtime-dbg-10.0
    Fixed in 10.0.13-1.el10_2
  • aspnetcore-targeting-pack-10.0
    Fixed in 10.0.13-1.el10_2
  • dotnet-apphost-pack-10.0
    Fixed in 10.0.13-1.el10_2
  • dotnet-host
    Fixed in 10.0.13-1.el10_2
  • dotnet-hostfxr-10.0
    Fixed in 10.0.13-1.el10_2
  • dotnet-runtime-10.0
    Fixed in 10.0.13-1.el10_2
  • dotnet-runtime-dbg-10.0
    Fixed in 10.0.13-1.el10_2
  • dotnet-sdk-10.0
    Fixed in 10.0.113-1.el10_2
  • dotnet-sdk-10.0-source-built-artifacts
    Fixed in 10.0.113-1.el10_2
  • dotnet-sdk-aot-10.0
    Fixed in 10.0.113-1.el10_2
  • dotnet-sdk-dbg-10.0
    Fixed in 10.0.113-1.el10_2
  • dotnet-targeting-pack-10.0
    Fixed in 10.0.13-1.el10_2
  • dotnet-templates-10.0
    Fixed in 10.0.113-1.el10_2

Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • dotnet6
    No fix yet
  • dotnet7
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • dotnet10
    Fixed in 10.0.113-10.0.13-0ubuntu1~24.04.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • dotnet10
    Fixed in 10.0.113-10.0.13-0ubuntu1~26.04.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.10

  • dotnet10
    Fixed in 10.0.113-10.0.13-0ubuntu1~26.10.1
  • dotnet11
    Fixed in 11.0.100-11.0.0~rc2-0ubuntu1~26.10.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.