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CVE-2026-96222CriticalFix has a known issueSpoofingNetworkRevised 16 Oct

Active Directory Federation Services (AD FS) Spoofing Vulnerability

MSRC advisory NVD CVE.org

Assessment

Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.

Severity
Critical
CVSS base score
7.4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
Impact
Spoofing
EPSS · 30-day forecast
0.6%FIRST forecast dated 7 Nov 2026, for the following 30 days · FIRST percentile 48.3% · about EPSS
Public detection template
No Nuclei template is listed in the current collected catalog
Exploitation detected
No known exploitation (MSRC assessment)
Exploitability
Exploitation Less Likely
Publicly disclosed
No (MSRC assessment)
Customer action
Required: follow the MSRC remediation guidance
Component
Active Directory Federation Services (AD FS)
Weakness
CWE-295: Improper Certificate Validation
Issued by
Microsoft
Published
13 Oct 2026 · October 2026
Last revised
16 Oct 2026Updated the Security Updates table to add download and KB article links for Microsoft Visual Studio. This is an informational change only; the fixed builds are unchanged.
CVSS 3.1 base metricsRed raises the risk · green lowers it
Attack vector
NetworkAV:N
Attack complexity
HighAC:H
Privileges required
NonePR:N
User interaction
NoneUI:N
Scope
UnchangedS:U
Confidentiality
HighC:H
Integrity
HighI:H
Availability
NoneA:N

Updates that fix it

23 KBs
KBTypeRestartApplies toKnown issuesOther CVEs
KB5126646 Security UpdateRequiredWindows Server 2025, Windows Server 2025 (Server Core installation)MitigatedUsers might be unable to sign in to OWA or send emails on Exchange ServerAll CVEs in KB5126646
KB5126651 Security UpdateRequiredWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019 and 1 moreMitigatedUsers might be unable to sign in to OWA or send emails on Exchange ServerAll CVEs in KB5126651
KB5126655 Security UpdateRequiredWindows Server 2022, Windows Server 2022 (Server Core installation)MitigatedUsers might be unable to sign in to OWA or send emails on Exchange ServerAll CVEs in KB5126655
KB5126836 Monthly RollupRequiredWindows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)None listedAll CVEs in KB5126836
KB5126868 Security UpdateRequiredMicrosoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 version 1607, Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016, Windows 10 Version 1607 for 32-bit Systems and 3 moreMitigatedUsers might be unable to sign in to OWA or send emails on Exchange ServerAll CVEs in KB5126868
KB5127660 Security Update—Microsoft .NET Framework 3.5 on Windows Server 2012None listedAll CVEs in KB5127660
KB5127664 Security Update—Microsoft .NET Framework 3.5 on Windows Server 2012 R2None listedAll CVEs in KB5127664
KB5127666 Security Update—Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2019, Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 version 1809None listedAll CVEs in KB5127666
KB5127667 Security Update—Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012None listedAll CVEs in KB5127667
KB5127668 Security Update—Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2None listedAll CVEs in KB5127668
KB5127683 Security Update—Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 version 21H2, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 version 22H2None listedAll CVEs in KB5127683
KB5127684 Security Update—Microsoft .NET Framework 4.8 on Windows 10 version 1607, Microsoft .NET Framework 4.8 on Windows Server 2016None listedAll CVEs in KB5127684
KB5127685 Security Update—Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 version 1809, Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019None listedAll CVEs in KB5127685
KB5127686 Security Update—Microsoft .NET Framework 4.8 on Windows Server 2012None listedAll CVEs in KB5127686
KB5127687 Security Update—Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022None listedAll CVEs in KB5127687
KB5127688 Security Update—Microsoft .NET Framework 4.8 on Windows Server 2012 R2None listedAll CVEs in KB5127688
KB5127689 Security Update—Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 version 21H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 version 22H2None listedAll CVEs in KB5127689
KB5127690 Security Update—Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 24H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 25H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2025None listedAll CVEs in KB5127690
KB5127691 Security Update—Microsoft .NET Framework 4.8.1 on Windows 11 version 26H1None listedAll CVEs in KB5127691
KB5127692 Security Update—Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 23H2None listedAll CVEs in KB5127692
KB5127693 Security Update—Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022None listedAll CVEs in KB5127693
KB5127694 Security Update—Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 26H2None listedAll CVEs in KB5127694
KB5127696 Security Update—Microsoft .NET Framework 3.5 on Windows 11 version 26H1None listedAll CVEs in KB5127696

Affected products

Developer Tools, ESU, Other, Windows
46 affected products

Independent patch analysis

Cisco Talos Intelligence

Microsoft Patch Tuesday for October 2026 — Snort rules and prominent vulnerabilities · 13 Oct 2026

Talos supplies analysis and cycle-level Snort rule references. Its article does not map each rule to a CVE or establish protection for your deployment. MSRC remains the source for vulnerability and fixing-update facts.

What changed

  1. Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  2. Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  3. Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  4. Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  5. Detection template: No Nuclei template listed · Customer action: Required: apply the update → Required: follow the MSRC remediation guidance · Public disclosure: No → No (MSRC assessment) · Exploitation detected: Not reported by MSRC → No known exploitation (MSRC assessment)
  6. Detection template: Unknown: exploit-code evidence is incomplete or retained → No Nuclei template listed · CISA KEV: Unknown: catalog evidence is incomplete or retained → Not listed in the collected catalog
  7. Detection template: No Nuclei template listed → Unknown: exploit-code evidence is incomplete or retained · CISA KEV: Not listed in the collected catalog → Unknown: catalog evidence is incomplete or retained
  8. Affected products: Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 version 1607, Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016, Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2019, Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 version 1809, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 version 1809, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 version 21H2, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 version 22H2, Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019, Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 version 21H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 version 22H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 23H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 24H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 25H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 26H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2025, Microsoft .NET Framework 3.5 on Windows 11 version 26H1, Microsoft .NET Framework 3.5 on Windows Server 2012, Microsoft .NET Framework 3.5 on Windows Server 2012 R2, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2, Microsoft .NET Framework 4.8 on Windows 10 version 1607, Microsoft .NET Framework 4.8 on Windows Server 2012, Microsoft .NET Framework 4.8 on Windows Server 2012 R2, Microsoft .NET Framework 4.8 on Windows Server 2016, Microsoft .NET Framework 4.8.1 on Windows 11 version 26H1, Microsoft Visual Studio 2022 version 17.14, Microsoft Visual Studio 2026 version 18.10, System.Security.Cryptography.Xml on .NET 8.0 installed on Linux, System.Security.Cryptography.Xml on .NET 8.0 installed on Mac OS, System.Security.Cryptography.Xml on .NET 8.0 installed on Windows, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation), Windows Server 2016, Windows Server 2016 (Server Core installation), Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows Server 2022 (Server Core installation), Windows Server 2025, Windows Server 2025 (Server Core installation) → Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 version 1607, Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016, Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2019, Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 version 1809, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 version 1809, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 version 21H2, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 version 22H2, Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019, Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 version 21H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 version 22H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 23H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 24H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 25H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 26H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2025, Microsoft .NET Framework 3.5 on Windows 11 version 26H1, Microsoft .NET Framework 3.5 on Windows Server 2012, Microsoft .NET Framework 3.5 on Windows Server 2012 R2, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2, Microsoft .NET Framework 4.8 on Windows 10 version 1607, Microsoft .NET Framework 4.8 on Windows Server 2012, Microsoft .NET Framework 4.8 on Windows Server 2012 R2, Microsoft .NET Framework 4.8 on Windows Server 2016, Microsoft .NET Framework 4.8.1 on Windows 11 version 26H1, Microsoft Visual Studio 2022 version 17.14, Microsoft Visual Studio 2026 version 18.10, System.Security.Cryptography.Xml on .NET 8.0 runtime installed on Linux, System.Security.Cryptography.Xml on .NET 8.0 runtime installed on Mac OS, System.Security.Cryptography.Xml on .NET 8.0 runtime installed on Windows, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation), Windows Server 2016, Windows Server 2016 (Server Core installation), Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows Server 2022 (Server Core installation), Windows Server 2025, Windows Server 2025 (Server Core installation)
  9. Publisher revision note: Information published. → Updated the Security Updates table to add download and KB article links for Microsoft Visual Studio. This is an informational change only; the fixed builds are unchanged.
Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

Cite this version
Field-level log (61)

Up to 100 recent field edits are shown; older edits may be outside retention.

  1. 7 Nov 2026 · 16:12:44 UTC EPSS0.6%; scored 6 Nov 2026 → 0.6%; scored 7 Nov 2026
  2. 6 Nov 2026 · 19:15:37 UTC EPSS0.6%; scored 5 Nov 2026 → 0.6%; scored 6 Nov 2026
  3. 6 Nov 2026 · 17:32:22 UTC Public detection templateUnknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  4. 6 Nov 2026 · 17:32:22 UTC Source coverage: public-exploit-codeIncomplete → Current
  5. 6 Nov 2026 · 17:32:22 UTC Source coverage: first-epssIncomplete → Current
  6. 6 Nov 2026 · 17:32:22 UTC Source coverage: msrc-cvrfIncomplete → Current
  7. 6 Nov 2026 · 16:31:02 UTC Public detection templateNo Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  8. 6 Nov 2026 · 16:31:02 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  9. 6 Nov 2026 · 16:31:02 UTC Source coverage: first-epssCurrent → Incomplete
  10. 6 Nov 2026 · 16:31:02 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  11. 5 Nov 2026 · 23:42:03 UTC EPSS0.6%; scored 4 Nov 2026 → 0.6%; scored 5 Nov 2026
  12. 5 Nov 2026 · 02:36:20 UTC EPSS0.6%; scored 3 Nov 2026 → 0.6%; scored 4 Nov 2026
  13. 4 Nov 2026 · 03:04:37 UTC EPSS0.6%; scored 2 Nov 2026 → 0.6%; scored 3 Nov 2026
  14. 3 Nov 2026 · 01:53:36 UTC EPSS0.6%; scored 1 Nov 2026 → 0.6%; scored 2 Nov 2026
  15. 2 Nov 2026 · 17:30:39 UTC Public detection templateUnknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  16. 2 Nov 2026 · 17:30:39 UTC Source coverage: public-exploit-codeIncomplete → Current
  17. 2 Nov 2026 · 17:30:39 UTC Source coverage: first-epssIncomplete → Current
  18. 2 Nov 2026 · 17:30:39 UTC Source coverage: msrc-cvrfIncomplete → Current
  19. 2 Nov 2026 · 16:27:39 UTC Public detection templateNo Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  20. 2 Nov 2026 · 16:27:39 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  21. 2 Nov 2026 · 16:27:39 UTC Source coverage: first-epssCurrent → Incomplete
  22. 2 Nov 2026 · 16:27:39 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  23. 2 Nov 2026 · 00:36:51 UTC EPSS0.6%; scored 31 Oct 2026 → 0.6%; scored 1 Nov 2026
  24. 31 Oct 2026 · 18:22:15 UTC EPSS0.6%; scored 30 Oct 2026 → 0.6%; scored 31 Oct 2026
  25. 30 Oct 2026 · 18:02:45 UTC EPSS0.6%; scored 29 Oct 2026 → 0.6%; scored 30 Oct 2026
  26. 29 Oct 2026 · 20:19:26 UTC Public detection templateNo Nuclei template listed
  27. 29 Oct 2026 · 20:19:26 UTC Customer actionRequired: apply the update → Required: follow the MSRC remediation guidance
  28. 29 Oct 2026 · 20:19:26 UTC Publicly disclosedNo → No (MSRC assessment)
  29. 29 Oct 2026 · 20:19:26 UTC Exploitation detectedNot reported by MSRC → No known exploitation (MSRC assessment)
  30. 29 Oct 2026 · 18:33:30 UTC EPSS0.6%; scored 28 Oct 2026 → 0.6%; scored 29 Oct 2026
  31. 28 Oct 2026 · 20:00:33 UTC EPSS0.6%; scored 27 Oct 2026 → 0.6%; scored 28 Oct 2026
  32. 27 Oct 2026 · 15:48:13 UTC EPSS0.6%; scored 26 Oct 2026 → 0.6%; scored 27 Oct 2026
  33. 26 Oct 2026 · 23:57:09 UTC EPSS0.6%; scored 25 Oct 2026 → 0.6%; scored 26 Oct 2026
  34. 25 Oct 2026 · 17:12:51 UTC EPSS0.6%; scored 24 Oct 2026 → 0.6%; scored 25 Oct 2026
  35. 25 Oct 2026 · 01:34:18 UTC EPSS0.6%; scored 23 Oct 2026 → 0.6%; scored 24 Oct 2026
  36. 23 Oct 2026 · 15:51:28 UTC EPSS0.6%; scored 22 Oct 2026 → 0.6%; scored 23 Oct 2026
  37. 23 Oct 2026 · 09:33:49 UTC Public exploit codeUnknown: exploit-code evidence is incomplete or retained → No Nuclei template listed
  38. 23 Oct 2026 · 09:33:49 UTC CISA KEVUnknown: catalog evidence is incomplete or retained → Not listed in the collected catalog
  39. 23 Oct 2026 · 09:33:49 UTC Source coverage: public-exploit-codeIncomplete → Current
  40. 23 Oct 2026 · 09:33:49 UTC Source coverage: first-epssIncomplete → Current
  41. 23 Oct 2026 · 09:33:49 UTC Source coverage: cisa-kevIncomplete → Current
  42. 23 Oct 2026 · 09:33:49 UTC Source coverage: msrc-cvrfIncomplete → Current
  43. 23 Oct 2026 · 08:31:50 UTC Public exploit codeNo Nuclei template listed → Unknown: exploit-code evidence is incomplete or retained
  44. 23 Oct 2026 · 08:31:50 UTC CISA KEVNot listed in the collected catalog → Unknown: catalog evidence is incomplete or retained
  45. 23 Oct 2026 · 08:31:50 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  46. 23 Oct 2026 · 08:31:50 UTC Source coverage: first-epssCurrent → Incomplete
  47. 23 Oct 2026 · 08:31:50 UTC Source coverage: cisa-kevCurrent → Incomplete
  48. 23 Oct 2026 · 08:31:50 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  49. 22 Oct 2026 · 22:02:57 UTC Affected productsMicrosoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 version 1607, Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016, Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2019, Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 version 1809, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 version 1809, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 version 21H2, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 version 22H2, Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019, Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 version 21H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 version 22H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 23H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 24H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 25H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 26H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2025, Microsoft .NET Framework 3.5 on Windows 11 version 26H1, Microsoft .NET Framework 3.5 on Windows Server 2012, Microsoft .NET Framework 3.5 on Windows Server 2012 R2, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2, Microsoft .NET Framework 4.8 on Windows 10 version 1607, Microsoft .NET Framework 4.8 on Windows Server 2012, Microsoft .NET Framework 4.8 on Windows Server 2012 R2, Microsoft .NET Framework 4.8 on Windows Server 2016, Microsoft .NET Framework 4.8.1 on Windows 11 version 26H1, Microsoft Visual Studio 2022 version 17.14, Microsoft Visual Studio 2026 version 18.10, System.Security.Cryptography.Xml on .NET 8.0 installed on Linux, System.Security.Cryptography.Xml on .NET 8.0 installed on Mac OS, System.Security.Cryptography.Xml on .NET 8.0 installed on Windows, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation), Windows Server 2016, Windows Server 2016 (Server Core installation), Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows Server 2022 (Server Core installation), Windows Server 2025, Windows Server 2025 (Server Core installation) → Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 version 1607, Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016, Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2019, Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 version 1809, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 version 1809, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 version 21H2, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 version 22H2, Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019, Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 version 21H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 version 22H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 23H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 24H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 25H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 26H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2025, Microsoft .NET Framework 3.5 on Windows 11 version 26H1, Microsoft .NET Framework 3.5 on Windows Server 2012, Microsoft .NET Framework 3.5 on Windows Server 2012 R2, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2, Microsoft .NET Framework 4.8 on Windows 10 version 1607, Microsoft .NET Framework 4.8 on Windows Server 2012, Microsoft .NET Framework 4.8 on Windows Server 2012 R2, Microsoft .NET Framework 4.8 on Windows Server 2016, Microsoft .NET Framework 4.8.1 on Windows 11 version 26H1, Microsoft Visual Studio 2022 version 17.14, Microsoft Visual Studio 2026 version 18.10, System.Security.Cryptography.Xml on .NET 8.0 runtime installed on Linux, System.Security.Cryptography.Xml on .NET 8.0 runtime installed on Mac OS, System.Security.Cryptography.Xml on .NET 8.0 runtime installed on Windows, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation), Windows Server 2016, Windows Server 2016 (Server Core installation), Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows Server 2022 (Server Core installation), Windows Server 2025, Windows Server 2025 (Server Core installation)
  50. 22 Oct 2026 · 17:33:15 UTC EPSS0.6%; scored 21 Oct 2026 → 0.6%; scored 22 Oct 2026
  51. 21 Oct 2026 · 21:47:24 UTC EPSS0.6%; scored 20 Oct 2026 → 0.6%; scored 21 Oct 2026
  52. 20 Oct 2026 · 20:53:31 UTC EPSS0.6%; scored 19 Oct 2026 → 0.6%; scored 20 Oct 2026
  53. 19 Oct 2026 · 15:12:40 UTC EPSS0.6%; scored 18 Oct 2026 → 0.6%; scored 19 Oct 2026
  54. 19 Oct 2026 · 15:12:40 UTC Link: Cisco Talos analysishttps://blog.talosintelligence.com/microsoft-patch-tuesday-for-october-2026
  55. 18 Oct 2026 · 14:54:30 UTC EPSS0.6%; scored 16 Oct 2026 → 0.6%; scored 18 Oct 2026
  56. 18 Oct 2026 · 14:54:30 UTC Link: October 2026/security?release=2026-Oct#cves
  57. 17 Oct 2026 · 07:28:24 UTC Revision noteInformation published. → Updated the Security Updates table to add download and KB article links for Microsoft Visual Studio. This is an informational change only; the fixed builds are unchanged.
  58. 17 Oct 2026 · 07:28:24 UTC Last revised13 Oct 2026 07:00 UTC → 16 Oct 2026 07:00 UTC
  59. 16 Oct 2026 · 16:13:25 UTC EPSS0.6%; scored 15 Oct 2026 → 0.6%; scored 16 Oct 2026
  60. 15 Oct 2026 · 21:30:54 UTC EPSS0.6%; scored 14 Oct 2026 → 0.6%; scored 15 Oct 2026
  61. 15 Oct 2026 · 01:07:54 UTC EPSSNot scored → 0.6%; scored 14 Oct 2026

Explore global source statements, affected packages and advisory history for CVE-2026-96222. The catalog has a separate collection scope from Microsoft release records.

Explicit identifiers and source references

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-96222 · Microsoft / collected KEV context

EUVD-2026-99750

GHSA-vrv5-2jg9-4mmr

BIT-dotnet-2026-96222

BIT-dotnet-sdk-2026-96222

cve-program · CVE-2026-96222

euvd · EUVD-2026-99750

nvd · CVE-2026-96222

osv · GHSA-vrv5-2jg9-4mmr

Related operational evidence

Explicit CVE identifiers
ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 8 Nov 06:21 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current

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