Read the docs
TI-2023-18269 Aliases CVE-2023-36406GHSA-fh5c-3jxg-8hgw

Windows Hyper-V Information Disclosure Vulnerability

Priority LOW 26CWE-20Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Microsoft. Impact type from Microsoft.

Summary

Windows Hyper-V Information Disclosure Vulnerability

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00754 55th percentileScored 2026-11-07
Fix Fixed Microsoft: 5 updates

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftWindows Server 202210.0.20348.0 to before 10.0.20348.211310.0.20348.2113Patch availableCNA
MicrosoftWindows 11 version 21H210.0.0 to before 10.0.22000.260010.0.22000.2600Patch availableCNA
MicrosoftWindows 11 version 22H210.0.22621.0 to before 10.0.22621.271510.0.22621.2715Patch availableCNA
MicrosoftWindows 11 version 22H310.0.22631.0 to before 10.0.22631.271510.0.22631.2715Patch availableCNA
MicrosoftWindows 11 Version 23H210.0.22631.0 to before 10.0.22631.271510.0.22631.2715Patch availableCNA
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation)10.0.25398.0 to before 10.0.25398.53110.0.25398.531Patch availableCNA
  • Windows Server 2022 VendorMicrosoft Affected 10.0.20348.0 to before 10.0.20348.2113 Fixed in 10.0.20348.2113 Patch available CNA
  • Windows 11 version 21H2 VendorMicrosoft Affected 10.0.0 to before 10.0.22000.2600 Fixed in 10.0.22000.2600 Patch available CNA
  • Windows 11 version 22H2 VendorMicrosoft Affected 10.0.22621.0 to before 10.0.22621.2715 Fixed in 10.0.22621.2715 Patch available CNA
  • Windows 11 version 22H3 VendorMicrosoft Affected 10.0.22631.0 to before 10.0.22631.2715 Fixed in 10.0.22631.2715 Patch available CNA
  • Windows 11 Version 23H2 VendorMicrosoft Affected 10.0.22631.0 to before 10.0.22631.2715 Fixed in 10.0.22631.2715 Patch available CNA
  • Windows Server 2022, 23H2 Edition (Server Core installation) VendorMicrosoft Affected 10.0.25398.0 to before 10.0.25398.531 Fixed in 10.0.25398.531 Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*before 10.0.22000.2600VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*before 10.0.22621.2715VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*before 10.0.22631.2715VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*not specified by NVDVulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*before 10.0.25398.531VulnerableMicrosoft
  • cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:* Versions before 10.0.22000.2600 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:* Versions before 10.0.22621.2715 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:* Versions before 10.0.22631.2715 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* Versions before 10.0.25398.531 Vulnerable ·Microsoft

Remediation

Microsoft 5 updates

  • KB5032304
    SecurityHotpatchUpdate
    • Windows Server 2022 10.0.20348.2091
    • Windows Server 2022 (Server Core installation) 10.0.20348.2091
  • KB5032202
    Security Update
    • Microsoft Defender for Endpoint for Windows 10.0.25398.531
    • Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.531
  • KB5032198
    Security Update
    • Microsoft Defender for Endpoint for Windows 10.0.20348.2113
    • Windows Server 2022 10.0.20348.2113
    • Windows Server 2022 (Server Core installation) 10.0.20348.2113
Show 2 more Microsoft updates
  • KB5032192
    Security Update
    • Microsoft Defender for Endpoint for Windows 10.0.22000.2600
    • Windows 11 version 21H2 for ARM64-based Systems 10.0.22000.2600
    • Windows 11 version 21H2 for x64-based Systems 10.0.22000.2600
  • KB5032190
    Security Update
    • Microsoft Defender for Endpoint for Windows 10.0.22631.2715, 10.0.22621.2715
    • Windows 11 Version 22H2 for ARM64-based Systems 10.0.22621.2715
    • Windows 11 Version 22H2 for x64-based Systems 10.0.22621.2715
    • Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.2715
    • Windows 11 Version 23H2 for x64-based Systems 10.0.22631.2715

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Information Disclosure
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-36406
  2. 2026-10-03 Alias added: GHSA-fh5c-3jxg-8hgw

References

Patch 1

  • TI-2024-29106 Windows MSHTML Platform Spoofing Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2024-19802 Windows MSHTML Platform Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2024-19751 SmartScreen Prompt Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2023-18080 Windows SmartScreen Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2023-15353 Windows SmartScreen Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2023-08061 Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability KEVCVSS 3.1HIGH 8.8
See all 1000 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences