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TI-2025-31717 Aliases CVE-2025-49751GHSA-ppcc-7hrx-r7pf

Windows Hyper-V Denial of Service Vulnerability

Priority LOW 31CWE-820Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

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

Summary

Missing synchronization in Windows Hyper-V allows an authorized attacker to deny service over an adjacent network.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00535 45th percentileScored 2026-11-07
Fix Fixed Microsoft: 9 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 10 Version 160710.0.14393.0 to before 10.0.14393.833010.0.14393.8330Patch availableCNA
MicrosoftWindows 10 Version 180910.0.17763.0 to before 10.0.17763.767810.0.17763.7678Patch availableCNA
MicrosoftWindows 10 Version 21H210.0.19044.0 to before 10.0.19044.621610.0.19044.6216Patch availableCNA
MicrosoftWindows 10 Version 22H210.0.19045.0 to before 10.0.19045.621610.0.19045.6216Patch availableCNA
MicrosoftWindows 11 version 22H210.0.22621.0 to before 10.0.22621.576810.0.22621.5768Patch availableCNA
MicrosoftWindows 11 version 22H310.0.22631.0 to before 10.0.22631.576810.0.22631.5768Patch availableCNA
MicrosoftWindows 11 Version 23H210.0.22631.0 to before 10.0.22631.576810.0.22631.5768Patch availableCNA
MicrosoftWindows 11 Version 24H210.0.26100.0 to before 10.0.26100.494610.0.26100.4946Patch availableCNA
MicrosoftWindows Server 201610.0.14393.0 to before 10.0.14393.833010.0.14393.8330Patch availableCNA
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0 to before 10.0.14393.833010.0.14393.8330Patch availableCNA
MicrosoftWindows Server 201910.0.17763.0 to before 10.0.17763.767810.0.17763.7678Patch availableCNA
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0 to before 10.0.17763.767810.0.17763.7678Patch availableCNA
MicrosoftWindows Server 202210.0.20348.0 to before 10.0.20348.405210.0.20348.4052Patch availableCNA
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation)10.0.25398.0 to before 10.0.25398.179110.0.25398.1791Patch availableCNA
MicrosoftWindows Server 202510.0.26100.0 to before 10.0.26100.494610.0.26100.4946Patch availableCNA
MicrosoftWindows Server 2025 (Server Core installation)10.0.26100.0 to before 10.0.26100.494610.0.26100.4946Patch availableCNA
  • Windows 10 Version 1607 VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.8330 Fixed in 10.0.14393.8330 Patch available CNA
  • Windows 10 Version 1809 VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.7678 Fixed in 10.0.17763.7678 Patch available CNA
  • Windows 10 Version 21H2 VendorMicrosoft Affected 10.0.19044.0 to before 10.0.19044.6216 Fixed in 10.0.19044.6216 Patch available CNA
  • Windows 10 Version 22H2 VendorMicrosoft Affected 10.0.19045.0 to before 10.0.19045.6216 Fixed in 10.0.19045.6216 Patch available CNA
  • Windows 11 version 22H2 VendorMicrosoft Affected 10.0.22621.0 to before 10.0.22621.5768 Fixed in 10.0.22621.5768 Patch available CNA
  • Windows 11 version 22H3 VendorMicrosoft Affected 10.0.22631.0 to before 10.0.22631.5768 Fixed in 10.0.22631.5768 Patch available CNA
  • Windows 11 Version 23H2 VendorMicrosoft Affected 10.0.22631.0 to before 10.0.22631.5768 Fixed in 10.0.22631.5768 Patch available CNA
  • Windows 11 Version 24H2 VendorMicrosoft Affected 10.0.26100.0 to before 10.0.26100.4946 Fixed in 10.0.26100.4946 Patch available CNA
  • Windows Server 2016 VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.8330 Fixed in 10.0.14393.8330 Patch available CNA
  • Windows Server 2016 (Server Core installation) VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.8330 Fixed in 10.0.14393.8330 Patch available CNA
  • Windows Server 2019 VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.7678 Fixed in 10.0.17763.7678 Patch available CNA
  • Windows Server 2019 (Server Core installation) VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.7678 Fixed in 10.0.17763.7678 Patch available CNA
  • Windows Server 2022 VendorMicrosoft Affected 10.0.20348.0 to before 10.0.20348.4052 Fixed in 10.0.20348.4052 Patch available CNA
  • Windows Server 2022, 23H2 Edition (Server Core installation) VendorMicrosoft Affected 10.0.25398.0 to before 10.0.25398.1791 Fixed in 10.0.25398.1791 Patch available CNA
  • Windows Server 2025 VendorMicrosoft Affected 10.0.26100.0 to before 10.0.26100.4946 Fixed in 10.0.26100.4946 Patch available CNA
  • Windows Server 2025 (Server Core installation) VendorMicrosoft Affected 10.0.26100.0 to before 10.0.26100.4946 Fixed in 10.0.26100.4946 Patch available CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*before 10.0.14393.8330VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*before 10.0.17763.7678VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*before 10.0.19044.6216VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*before 10.0.19045.6216VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*before 10.0.22621.5768VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*before 10.0.22631.5768VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*before 10.0.26100.4851VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*before 10.0.14393.8330VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*before 10.0.17763.7678VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*before 10.0.20348.3989VulnerableMicrosoft
  • cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:* Versions before 10.0.14393.8330 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* Versions before 10.0.17763.7678 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:* Versions before 10.0.19044.6216 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:* Versions before 10.0.19045.6216 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:* Versions before 10.0.22621.5768 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:* Versions before 10.0.22631.5768 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:* Versions before 10.0.26100.4851 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* Versions before 10.0.14393.8330 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* Versions before 10.0.17763.7678 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* Versions before 10.0.20348.3989 Vulnerable ·Microsoft
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*before 10.0.25398.1791VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*before 10.0.26100.4851VulnerableMicrosoft
  • cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* Versions before 10.0.25398.1791 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:* Versions before 10.0.26100.4851 Vulnerable ·Microsoft

Remediation

Microsoft 9 updates

  • KB5064010
    SecurityHotpatchUpdate
    • Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.4851
    • Windows 11 Version 24H2 for x64-based Systems 10.0.26100.4851
    • Windows Server 2025 10.0.26100.4851
    • Windows Server 2025 (Server Core installation) 10.0.26100.4851
  • KB5063899
    Security Update
    • Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1791
  • KB5063880
    Security Update
    • Windows Server 2022 10.0.20348.4052
    • Windows Server 2022 (Server Core installation) 10.0.20348.4052
Show 6 more Microsoft updates
  • KB5063878
    Security Update
    • Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.4946
    • Windows 11 Version 24H2 for x64-based Systems 10.0.26100.4946
    • Windows Server 2025 10.0.26100.4946
    • Windows Server 2025 (Server Core installation) 10.0.26100.4946
  • KB5063877
    Security Update
    • Windows 10 Version 1809 for 32-bit Systems 10.0.17763.7678
    • Windows 10 Version 1809 for x64-based Systems 10.0.17763.7678
    • Windows Server 2019 10.0.17763.7678
    • Windows Server 2019 (Server Core installation) 10.0.17763.7678
  • KB5063875
    Security Update
    • Windows 11 Version 22H2 for ARM64-based Systems 10.0.22621.5768
    • Windows 11 Version 22H2 for x64-based Systems 10.0.22621.5768
    • Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.5768
    • Windows 11 Version 23H2 for x64-based Systems 10.0.22631.5768
  • KB5063871
    Security Update
    • Windows 10 Version 1607 for 32-bit Systems 10.0.14393.8330
    • Windows 10 Version 1607 for x64-based Systems 10.0.14393.8330
    • Windows Server 2016 10.0.14393.8330
    • Windows Server 2016 (Server Core installation) 10.0.14393.8330
  • KB5063812
    SecurityHotpatchUpdate
    • Windows Server 2022 10.0.20348.3989
    • Windows Server 2022 (Server Core installation) 10.0.20348.3989
  • KB5063709
    Security Update
    • Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.6216
    • Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.6216
    • Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6216
    • Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.6216
    • Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.6216
    • Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6216

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Denial of Service
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-49751
  2. 2026-10-03 Alias added: GHSA-ppcc-7hrx-r7pf

References

Patch 1

  • TI-2026-26194 Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-06077 Microsoft Windows XP SP3, Windows XP x64 XP2, Windows Server 2003 SP2, Windows Vista… KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-73128 Windows Shell Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2026-17367 MSHTML Framework Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2026-17364 Windows Shell Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2025-24062 Windows SMB Client Elevation of Privilege Vulnerability KEVCVSS 3.1HIGH 8.8
See all 3427 →

Sources

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