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TI-2021-09588 Aliases CVE-2021-28476GHSA-j6pv-9pg5-vg52

Windows Hyper-V Remote Code Execution Vulnerability

Priority HIGH 70Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Windows Hyper-V Remote Code Execution Vulnerability

Why it matters now

EPSS 0.39226 98th percentileScored 2026-11-07
Fix Fixed Windows 10 Version 1803 (Microsoft): 10.0.17134.2207Windows 10 Version 1809 (Microsoft): 10.0.17763.1935+21 more products

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftWindows 10 Version 180310.0.0 to before 10.0.17134.220710.0.17134.2207Patch availableCNA
MicrosoftWindows 10 Version 180910.0.0 to before 10.0.17763.193510.0.17763.1935Patch availableCNA
MicrosoftWindows Server 201910.0.0 to before 10.0.17763.193510.0.17763.1935Patch availableCNA
MicrosoftWindows Server 2019 (Server Core installation)10.0.0 to before 10.0.17763.193510.0.17763.1935Patch availableCNA
MicrosoftWindows 10 Version 190910.0.0 to before 10.0.18363.155610.0.18363.1556Patch availableCNA
MicrosoftWindows Server, version 1909 (Server Core installation)10.0.0 to before 10.0.18363.155610.0.18363.1556Patch availableCNA
MicrosoftWindows 10 Version 200410.0.0 to before 10.0.19041.98210.0.19041.982Patch availableCNA
MicrosoftWindows Server version 200410.0.0 to before 10.0.19041.98210.0.19041.982Patch availableCNA
MicrosoftWindows Server version 20H210.0.0 to before 10.0.19042.98210.0.19042.982Patch availableCNA
MicrosoftWindows 10 Version 150710.0.0 to before 10.0.10240.1893110.0.10240.18931Patch availableCNA
MicrosoftWindows 10 Version 160710.0.0 to before 10.0.14393.440110.0.14393.4401Patch availableCNA
MicrosoftWindows Server 201610.0.0 to before 10.0.14393.440110.0.14393.4401Patch availableCNA
MicrosoftWindows Server 2016 (Server Core installation)10.0.0 to before 10.0.14393.440110.0.14393.4401Patch availableCNA
MicrosoftWindows 7 Service Pack 16.1.0 to before 6.1.7601.24597; 6.1.0 to before 6.1.7601.245986.1.7601.24597, 6.1.7601.24598Patch availableCNA
MicrosoftWindows 8.16.3.0 to before 6.3.9600.200176.3.9600.20017Patch availableCNA
MicrosoftWindows Server 2008 Service Pack 26.0.0 to before 6.0.6003.211176.0.6003.21117Patch availableCNA
MicrosoftWindows Server 2008 Service Pack 2 (Server Core installation)6.0.0 to before 6.0.6003.211176.0.6003.21117Patch availableCNA
MicrosoftWindows Server 2008 R2 Service Pack 16.1.0 to before 6.1.7601.24597; 6.1.0 to before 6.1.7601.245986.1.7601.24597, 6.1.7601.24598Patch availableCNA
MicrosoftWindows Server 2008 R2 Service Pack 1 (Server Core installation)6.0.0 to before 6.1.7601.24597; 6.0.0 to before 6.1.7601.245986.1.7601.24597, 6.1.7601.24598Patch availableCNA
MicrosoftWindows Server 20126.2.0 to before 6.2.9200.233476.2.9200.23347Patch availableCNA
MicrosoftWindows Server 2012 (Server Core installation)6.2.0 to before 6.2.9200.233476.2.9200.23347Patch availableCNA
MicrosoftWindows Server 2012 R26.3.0 to before 6.3.9600.200176.3.9600.20017Patch availableCNA
MicrosoftWindows Server 2012 R2 (Server Core installation)6.3.0 to before 6.3.9600.200176.3.9600.20017Patch availableCNA
  • Windows 10 Version 1803 VendorMicrosoft Affected 10.0.0 to before 10.0.17134.2207 Fixed in 10.0.17134.2207 Patch available CNA
  • Windows 10 Version 1809 VendorMicrosoft Affected 10.0.0 to before 10.0.17763.1935 Fixed in 10.0.17763.1935 Patch available CNA
  • Windows Server 2019 VendorMicrosoft Affected 10.0.0 to before 10.0.17763.1935 Fixed in 10.0.17763.1935 Patch available CNA
  • Windows Server 2019 (Server Core installation) VendorMicrosoft Affected 10.0.0 to before 10.0.17763.1935 Fixed in 10.0.17763.1935 Patch available CNA
  • Windows 10 Version 1909 VendorMicrosoft Affected 10.0.0 to before 10.0.18363.1556 Fixed in 10.0.18363.1556 Patch available CNA
  • Windows Server, version 1909 (Server Core installation) VendorMicrosoft Affected 10.0.0 to before 10.0.18363.1556 Fixed in 10.0.18363.1556 Patch available CNA
  • Windows 10 Version 2004 VendorMicrosoft Affected 10.0.0 to before 10.0.19041.982 Fixed in 10.0.19041.982 Patch available CNA
  • Windows Server version 2004 VendorMicrosoft Affected 10.0.0 to before 10.0.19041.982 Fixed in 10.0.19041.982 Patch available CNA
  • Windows Server version 20H2 VendorMicrosoft Affected 10.0.0 to before 10.0.19042.982 Fixed in 10.0.19042.982 Patch available CNA
  • Windows 10 Version 1507 VendorMicrosoft Affected 10.0.0 to before 10.0.10240.18931 Fixed in 10.0.10240.18931 Patch available CNA
  • Windows 10 Version 1607 VendorMicrosoft Affected 10.0.0 to before 10.0.14393.4401 Fixed in 10.0.14393.4401 Patch available CNA
  • Windows Server 2016 VendorMicrosoft Affected 10.0.0 to before 10.0.14393.4401 Fixed in 10.0.14393.4401 Patch available CNA
  • Windows Server 2016 (Server Core installation) VendorMicrosoft Affected 10.0.0 to before 10.0.14393.4401 Fixed in 10.0.14393.4401 Patch available CNA
  • Windows 7 Service Pack 1 VendorMicrosoft Affected 6.1.0 to before 6.1.7601.24597; 6.1.0 to before 6.1.7601.24598 Fixed in 6.1.7601.24597, 6.1.7601.24598 Patch available CNA
  • Windows 8.1 VendorMicrosoft Affected 6.3.0 to before 6.3.9600.20017 Fixed in 6.3.9600.20017 Patch available CNA
  • Windows Server 2008 Service Pack 2 VendorMicrosoft Affected 6.0.0 to before 6.0.6003.21117 Fixed in 6.0.6003.21117 Patch available CNA
  • Windows Server 2008 Service Pack 2 (Server Core installation) VendorMicrosoft Affected 6.0.0 to before 6.0.6003.21117 Fixed in 6.0.6003.21117 Patch available CNA
  • Windows Server 2008 R2 Service Pack 1 VendorMicrosoft Affected 6.1.0 to before 6.1.7601.24597; 6.1.0 to before 6.1.7601.24598 Fixed in 6.1.7601.24597, 6.1.7601.24598 Patch available CNA
  • Windows Server 2008 R2 Service Pack 1 (Server Core installation) VendorMicrosoft Affected 6.0.0 to before 6.1.7601.24597; 6.0.0 to before 6.1.7601.24598 Fixed in 6.1.7601.24597, 6.1.7601.24598 Patch available CNA
  • Windows Server 2012 VendorMicrosoft Affected 6.2.0 to before 6.2.9200.23347 Fixed in 6.2.9200.23347 Patch available CNA
  • Windows Server 2012 (Server Core installation) VendorMicrosoft Affected 6.2.0 to before 6.2.9200.23347 Fixed in 6.2.9200.23347 Patch available CNA
  • Windows Server 2012 R2 VendorMicrosoft Affected 6.3.0 to before 6.3.9600.20017 Fixed in 6.3.9600.20017 Patch available CNA
  • Windows Server 2012 R2 (Server Core installation) VendorMicrosoft Affected 6.3.0 to before 6.3.9600.20017 Fixed in 6.3.9600.20017 Patch available CNA

CPE configurations NVD · 18

CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:*not specified by NVDVulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x64:*20h2VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x64:*1607VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:x64:*1803VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x64:*1809VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x64:*1909VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:x64:*2004VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x64:*not specified by NVDVulnerableMicrosoft
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x64:*not specified by NVDVulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*not specified by NVDVulnerableMicrosoft
  • cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x64:* Versions 20h2 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x64:* Versions 1607 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:x64:* Versions 1803 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x64:* Versions 1809 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x64:* Versions 1909 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:x64:* Versions 2004 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x64:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x64:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:* Versions not specified by NVD Vulnerable ·Microsoft
Show 8 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*r2 sp1VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*not specified by NVDVulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*r2VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*not specified by NVDVulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:*20h2VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*1909VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*2004VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*not specified by NVDVulnerableMicrosoft
  • cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* Versions r2 sp1 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* Versions r2 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:* Versions 20h2 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:* Versions 1909 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:* Versions 2004 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft

Remediation

  • Fix · CNA Windows 10 Version 1803 (Microsoft) Fixed in 10.0.17134.2207
  • Fix · CNA Windows 10 Version 1809 (Microsoft) Fixed in 10.0.17763.1935
  • Fix · CNA Windows Server 2019 (Microsoft) Fixed in 10.0.17763.1935
  • Fix · CNA Windows Server 2019 (Server Core installation) (Microsoft) Fixed in 10.0.17763.1935
  • Fix · CNA Windows 10 Version 1909 (Microsoft) Fixed in 10.0.18363.1556
  • Fix · CNA Windows Server, version 1909 (Server Core installation) (Microsoft) Fixed in 10.0.18363.1556
  • Fix · CNA Windows 10 Version 2004 (Microsoft) Fixed in 10.0.19041.982
  • Fix · CNA Windows Server version 2004 (Microsoft) Fixed in 10.0.19041.982
  • Fix · CNA Windows Server version 20H2 (Microsoft) Fixed in 10.0.19042.982
  • Fix · CNA Windows 10 Version 1507 (Microsoft) Fixed in 10.0.10240.18931
  • Fix · CNA Windows 10 Version 1607 (Microsoft) Fixed in 10.0.14393.4401
  • Fix · CNA Windows Server 2016 (Microsoft) Fixed in 10.0.14393.4401
  • Fix · CNA Windows Server 2016 (Server Core installation) (Microsoft) Fixed in 10.0.14393.4401
  • Fix · CNA Windows 7 Service Pack 1 (Microsoft) Fixed in 6.1.7601.24597, 6.1.7601.24598
  • Fix · CNA Windows 8.1 (Microsoft) Fixed in 6.3.9600.20017
  • Fix · CNA Windows Server 2008 Service Pack 2 (Microsoft) Fixed in 6.0.6003.21117
  • Fix · CNA Windows Server 2008 Service Pack 2 (Server Core installation) (Microsoft) Fixed in 6.0.6003.21117
  • Fix · CNA Windows Server 2008 R2 Service Pack 1 (Microsoft) Fixed in 6.1.7601.24597, 6.1.7601.24598
  • Fix · CNA Windows Server 2008 R2 Service Pack 1 (Server Core installation) (Microsoft) Fixed in 6.1.7601.24597, 6.1.7601.24598
  • Fix · CNA Windows Server 2012 (Microsoft) Fixed in 6.2.9200.23347
  • Fix · CNA Windows Server 2012 (Server Core installation) (Microsoft) Fixed in 6.2.9200.23347
  • Fix · CNA Windows Server 2012 R2 (Microsoft) Fixed in 6.3.9600.20017
  • Fix · CNA Windows Server 2012 R2 (Server Core installation) (Microsoft) Fixed in 6.3.9600.20017

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-28476
  2. 2026-10-03 Alias added: GHSA-j6pv-9pg5-vg52

References

Patch 1

Advisory 1

  • TI-2015-02132 Buffer underflow in atmfd.dll in the Windows Adobe Type Manager Library in Microsoft… KEVCVSS 3.1HIGH 8.8
  • TI-2022-10056 Remote Procedure Call Runtime Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2022-06273 HTTP Protocol Stack Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2019-00906 Remote Desktop Services Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2022-15533 Windows Internet Key Exchange (IKE) Protocol Extensions Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2015-01587 Mount Manager in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows… KEVCVSS 3.1MEDIUM 6.6
See all 2973 →

Sources

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