synced 8 MIN AGO
01 Record

CVE-2026-96222

Active Directory Federation Services (AD FS) Spoofing Vulnerability

HighPUBLISHEDCNA: microsoft
CNA base score7.4 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
View raw JSON

02 Description

Active Directory Federation Services (AD FS) Spoofing 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
0.58% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 47.7% of scored records. A rank, not a probability.
NVD base score
7.4 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-22.
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 19:00Z15 DAYS AGO
Last updated
2026-10-28 18:15Z16 HR AGO
Reserved
2026-09-22
Assigning CNA
microsoft
Record state
PUBLISHED
Severity
High (CVSS 7.4)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
Weaknesses
  • CWE-295Improper Certificate ValidationBase
Data version
5.2
Document digest
ea04a5d120850ab5c924865a87cd418db03a691f5923a5b0f2d3a56aae5583c4

05 Affected products

VendorProductVersionsPlatforms
MicrosoftMicrosoft .NET Framework 3.53.5.0 to < 2.0.50727.9188 AND 3.0.30729.9171Windows 11 version 26H1, Windows Server 2012, Windows Server 2012 R2
MicrosoftMicrosoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.23.0.0.0 to < 2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0Windows 10 version 1607, Windows Server 2016, Windows Server 2019
MicrosoftMicrosoft .NET Framework 3.5 AND 4.7.24.7.0 to < 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0Windows 10 version 1809
MicrosoftMicrosoft .NET Framework 3.5 AND 4.84.8.0 to < 2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0Windows 10 version 1809, Windows 10 version 21H2, Windows 10 version 22H2, Windows Server 2019, Windows Server 2022
MicrosoftMicrosoft .NET Framework 3.5 AND 4.8.14.8.1 to < 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0Windows 10 version 21H2, Windows 10 version 22H2, Windows 11 version 23H2, Windows 11 version 24H2, Windows 11 version 25H2, Windows 11 version 26H2, Windows Server 2022, Windows Server 2025
MicrosoftMicrosoft .NET Framework 4.6.2/4.7/4.7.1/4.7.24.7.0 to < 4.7.4150.0Windows Server 2012, Windows Server 2012 R2
MicrosoftMicrosoft .NET Framework 4.84.8.0 to < 4.8.4811.0Windows 10 version 1607, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016
MicrosoftMicrosoft .NET Framework 4.8.14.8.0.0 to < 4.8.9363.0Windows 11 version 26H1
MicrosoftMicrosoft Visual Studio 2022 version 17.1417.14.0 to < 17.14.42—
MicrosoftMicrosoft Visual Studio 2026 version 18.1018.10.0 to < 18.10.4—
MicrosoftSystem.Security.Cryptography.Xml10.0.0 to < 8.0.5.NET 8.0 runtime installed on Linux, .NET 8.0 runtime installed on Mac OS, .NET 8.0 runtime installed on Windows
MicrosoftWindows 10 Version 160710.0.14393.0 to < 10.0.14393.961232-bit Systems, x64-based Systems
MicrosoftWindows 10 Version 180910.0.17763.0 to < 10.0.17763.937632-bit Systems, x64-based Systems
MicrosoftWindows Server 2012 R26.3.9600.0 to < 6.3.9600.23470x64-based Systems
MicrosoftWindows Server 2012 R2 (Server Core installation)6.3.9600.0 to < 6.3.9600.23470x64-based Systems
MicrosoftWindows Server 201610.0.14393.0 to < 10.0.14393.9612x64-based Systems
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0 to < 10.0.14393.9612x64-based Systems
MicrosoftWindows Server 201910.0.17763.0 to < 10.0.17763.9376x64-based Systems
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0 to < 10.0.17763.9376x64-based Systems
MicrosoftWindows Server 202210.0.20348.0 to < 10.0.20348.5761x64-based Systems
MicrosoftWindows Server 202510.0.26100.0 to < 10.0.26100.33650x64-based Systems
MicrosoftWindows Server 2025 (Server Core installation)10.0.26100.0 to < 10.0.26100.33650x64-based Systems

06 References

07 Fixed in

AlmaLinux 8

  • aspnetcore-runtime-8.0
    Fixed in 8.0.32-2.el8_10
  • aspnetcore-runtime-dbg-8.0
    Fixed in 8.0.32-2.el8_10
  • aspnetcore-targeting-pack-8.0
    Fixed in 8.0.32-2.el8_10
  • dotnet-apphost-pack-8.0
    Fixed in 8.0.32-2.el8_10
  • dotnet-hostfxr-8.0
    Fixed in 8.0.32-2.el8_10
  • dotnet-runtime-8.0
    Fixed in 8.0.32-2.el8_10
  • dotnet-runtime-dbg-8.0
    Fixed in 8.0.32-2.el8_10
  • dotnet-sdk-8.0
    Fixed in 8.0.132-2.el8_10
  • dotnet-sdk-8.0-source-built-artifacts
    Fixed in 8.0.132-2.el8_10
  • dotnet-sdk-dbg-8.0
    Fixed in 8.0.132-2.el8_10
  • dotnet-targeting-pack-8.0
    Fixed in 8.0.32-2.el8_10
  • dotnet-templates-8.0
    Fixed in 8.0.132-2.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-8.0
    Fixed in 8.0.32-1.el9_8
  • aspnetcore-runtime-dbg-8.0
    Fixed in 8.0.32-1.el9_8
  • aspnetcore-targeting-pack-8.0
    Fixed in 8.0.32-1.el9_8
  • dotnet-apphost-pack-8.0
    Fixed in 8.0.32-1.el9_8
  • dotnet-hostfxr-8.0
    Fixed in 8.0.32-1.el9_8
  • dotnet-runtime-8.0
    Fixed in 8.0.32-1.el9_8
  • dotnet-runtime-dbg-8.0
    Fixed in 8.0.32-1.el9_8
  • dotnet-sdk-8.0
    Fixed in 8.0.132-1.el9_8
  • dotnet-sdk-8.0-source-built-artifacts
    Fixed in 8.0.132-1.el9_8
  • dotnet-sdk-dbg-8.0
    Fixed in 8.0.132-1.el9_8
  • dotnet-targeting-pack-8.0
    Fixed in 8.0.32-1.el9_8
  • dotnet-templates-8.0
    Fixed in 8.0.132-1.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-8.0
    Fixed in 8.0.32-1.el10_2
  • aspnetcore-runtime-dbg-8.0
    Fixed in 8.0.32-1.el10_2
  • aspnetcore-targeting-pack-8.0
    Fixed in 8.0.32-1.el10_2
  • dotnet-apphost-pack-8.0
    Fixed in 8.0.32-1.el10_2
  • dotnet-hostfxr-8.0
    Fixed in 8.0.32-1.el10_2
  • dotnet-runtime-8.0
    Fixed in 8.0.32-1.el10_2
  • dotnet-runtime-dbg-8.0
    Fixed in 8.0.32-1.el10_2
  • dotnet-sdk-8.0
    Fixed in 8.0.132-1.el10_2
  • dotnet-sdk-8.0-source-built-artifacts
    Fixed in 8.0.132-1.el10_2
  • dotnet-sdk-dbg-8.0
    Fixed in 8.0.132-1.el10_2
  • dotnet-targeting-pack-8.0
    Fixed in 8.0.32-1.el10_2
  • dotnet-templates-8.0
    Fixed in 8.0.132-1.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-8.0
    Fixed in 8.0.32-2.el8_10
  • aspnetcore-runtime-dbg-8.0
    Fixed in 8.0.32-2.el8_10
  • aspnetcore-targeting-pack-8.0
    Fixed in 8.0.32-2.el8_10
  • dotnet-apphost-pack-8.0
    Fixed in 8.0.32-2.el8_10
  • dotnet-hostfxr-8.0
    Fixed in 8.0.32-2.el8_10
  • dotnet-runtime-8.0
    Fixed in 8.0.32-2.el8_10
  • dotnet-runtime-dbg-8.0
    Fixed in 8.0.32-2.el8_10
  • dotnet-sdk-8.0
    Fixed in 8.0.132-2.el8_10
  • dotnet-sdk-8.0-source-built-artifacts
    Fixed in 8.0.132-2.el8_10
  • dotnet-sdk-dbg-8.0
    Fixed in 8.0.132-2.el8_10
  • dotnet-targeting-pack-8.0
    Fixed in 8.0.32-2.el8_10
  • dotnet-templates-8.0
    Fixed in 8.0.132-2.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-8.0
    Fixed in 8.0.32-1.el9_8
  • aspnetcore-runtime-dbg-8.0
    Fixed in 8.0.32-1.el9_8
  • aspnetcore-targeting-pack-8.0
    Fixed in 8.0.32-1.el9_8
  • dotnet-apphost-pack-8.0
    Fixed in 8.0.32-1.el9_8
  • dotnet-hostfxr-8.0
    Fixed in 8.0.32-1.el9_8
  • dotnet-runtime-8.0
    Fixed in 8.0.32-1.el9_8
  • dotnet-runtime-dbg-8.0
    Fixed in 8.0.32-1.el9_8
  • dotnet-sdk-8.0
    Fixed in 8.0.132-1.el9_8
  • dotnet-sdk-8.0-source-built-artifacts
    Fixed in 8.0.132-1.el9_8
  • dotnet-sdk-dbg-8.0
    Fixed in 8.0.132-1.el9_8
  • dotnet-targeting-pack-8.0
    Fixed in 8.0.32-1.el9_8
  • dotnet-templates-8.0
    Fixed in 8.0.132-1.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-8.0
    Fixed in 8.0.32-1.el10_2
  • aspnetcore-runtime-dbg-8.0
    Fixed in 8.0.32-1.el10_2
  • aspnetcore-targeting-pack-8.0
    Fixed in 8.0.32-1.el10_2
  • dotnet-apphost-pack-8.0
    Fixed in 8.0.32-1.el10_2
  • dotnet-hostfxr-8.0
    Fixed in 8.0.32-1.el10_2
  • dotnet-runtime-8.0
    Fixed in 8.0.32-1.el10_2
  • dotnet-runtime-dbg-8.0
    Fixed in 8.0.32-1.el10_2
  • dotnet-sdk-8.0
    Fixed in 8.0.132-1.el10_2
  • dotnet-sdk-8.0-source-built-artifacts
    Fixed in 8.0.132-1.el10_2
  • dotnet-sdk-dbg-8.0
    Fixed in 8.0.132-1.el10_2
  • dotnet-targeting-pack-8.0
    Fixed in 8.0.32-1.el10_2
  • dotnet-templates-8.0
    Fixed in 8.0.132-1.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
  • dotnet8
    Fixed in 8.0.132-8.0.32-0ubuntu1~22.04.1

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

Ubuntu 24.04 LTS

  • dotnet8
    Fixed in 8.0.132-8.0.32-0ubuntu1~24.04.1

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.